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synced 2024-08-21 16:29:59 +00:00
![Arnaldo Carvalho de Melo](/assets/img/avatar_default.png)
This is a string constant that gets returned and then strcmp() around, we can instead just do a pointer comparision. That requires a new global variable to comply with these warnings from some versions of clang and gcc: 41 68.95 fedora:rawhide : FAIL clang version 16.0.4 (Fedora 16.0.4-1.fc39) result of comparison against a string literal is unspecified (use an explicit string comparison function instead) [-Werror,-Wstring-compare] if (start_line != SRCLINE_UNKNOWN && ^ ~~~~~~~~~~~~~~~ 41 Ack comments: Agreed, the strcmps make me nervous as they won't distinguish heap from a global meaning we could end up with things like pointers to freed memory. The comparison with the global is always going to be same imo. Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Brian Robbins <brianrob@linux.microsoft.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Fangrui Song <maskray@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Babrou <ivan@cloudflare.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: Will Deacon <will@kernel.org> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Ye Xingchen <ye.xingchen@zte.com.cn> Cc: Yuan Can <yuancan@huawei.com> Link: https://lore.kernel.org/lkml/ZIcoJytUEz4UgQYR@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2923 lines
69 KiB
C
2923 lines
69 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "callchain.h"
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#include "debug.h"
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#include "dso.h"
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#include "build-id.h"
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#include "hist.h"
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#include "kvm-stat.h"
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#include "map.h"
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#include "map_symbol.h"
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#include "branch.h"
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#include "mem-events.h"
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#include "session.h"
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#include "namespaces.h"
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#include "cgroup.h"
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#include "sort.h"
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#include "units.h"
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#include "evlist.h"
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#include "evsel.h"
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#include "annotate.h"
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#include "srcline.h"
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#include "symbol.h"
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#include "thread.h"
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#include "block-info.h"
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#include "ui/progress.h"
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#include <errno.h>
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#include <math.h>
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#include <inttypes.h>
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#include <sys/param.h>
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#include <linux/rbtree.h>
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#include <linux/string.h>
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#include <linux/time64.h>
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#include <linux/zalloc.h>
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static bool hists__filter_entry_by_dso(struct hists *hists,
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struct hist_entry *he);
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static bool hists__filter_entry_by_thread(struct hists *hists,
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struct hist_entry *he);
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static bool hists__filter_entry_by_symbol(struct hists *hists,
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struct hist_entry *he);
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static bool hists__filter_entry_by_socket(struct hists *hists,
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struct hist_entry *he);
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u16 hists__col_len(struct hists *hists, enum hist_column col)
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{
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return hists->col_len[col];
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}
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void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len)
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{
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hists->col_len[col] = len;
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}
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bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len)
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{
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if (len > hists__col_len(hists, col)) {
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hists__set_col_len(hists, col, len);
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return true;
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}
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return false;
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}
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void hists__reset_col_len(struct hists *hists)
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{
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enum hist_column col;
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for (col = 0; col < HISTC_NR_COLS; ++col)
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hists__set_col_len(hists, col, 0);
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}
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static void hists__set_unres_dso_col_len(struct hists *hists, int dso)
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{
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const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
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if (hists__col_len(hists, dso) < unresolved_col_width &&
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!symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
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!symbol_conf.dso_list)
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hists__set_col_len(hists, dso, unresolved_col_width);
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}
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void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
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{
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const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
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int symlen;
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u16 len;
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if (h->block_info)
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return;
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/*
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* +4 accounts for '[x] ' priv level info
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* +2 accounts for 0x prefix on raw addresses
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* +3 accounts for ' y ' symtab origin info
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*/
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if (h->ms.sym) {
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symlen = h->ms.sym->namelen + 4;
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if (verbose > 0)
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symlen += BITS_PER_LONG / 4 + 2 + 3;
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hists__new_col_len(hists, HISTC_SYMBOL, symlen);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_SYMBOL, symlen);
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hists__set_unres_dso_col_len(hists, HISTC_DSO);
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}
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len = thread__comm_len(h->thread);
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if (hists__new_col_len(hists, HISTC_COMM, len))
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hists__set_col_len(hists, HISTC_THREAD, len + 8);
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if (h->ms.map) {
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len = dso__name_len(map__dso(h->ms.map));
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hists__new_col_len(hists, HISTC_DSO, len);
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}
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if (h->parent)
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hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen);
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if (h->branch_info) {
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if (h->branch_info->from.ms.sym) {
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symlen = (int)h->branch_info->from.ms.sym->namelen + 4;
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if (verbose > 0)
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symlen += BITS_PER_LONG / 4 + 2 + 3;
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hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
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symlen = dso__name_len(map__dso(h->branch_info->from.ms.map));
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hists__new_col_len(hists, HISTC_DSO_FROM, symlen);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
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hists__new_col_len(hists, HISTC_ADDR_FROM, symlen);
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hists__set_unres_dso_col_len(hists, HISTC_DSO_FROM);
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}
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if (h->branch_info->to.ms.sym) {
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symlen = (int)h->branch_info->to.ms.sym->namelen + 4;
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if (verbose > 0)
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symlen += BITS_PER_LONG / 4 + 2 + 3;
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hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
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symlen = dso__name_len(map__dso(h->branch_info->to.ms.map));
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hists__new_col_len(hists, HISTC_DSO_TO, symlen);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
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hists__new_col_len(hists, HISTC_ADDR_TO, symlen);
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hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
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}
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if (h->branch_info->srcline_from)
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hists__new_col_len(hists, HISTC_SRCLINE_FROM,
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strlen(h->branch_info->srcline_from));
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if (h->branch_info->srcline_to)
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hists__new_col_len(hists, HISTC_SRCLINE_TO,
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strlen(h->branch_info->srcline_to));
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}
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if (h->mem_info) {
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if (h->mem_info->daddr.ms.sym) {
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symlen = (int)h->mem_info->daddr.ms.sym->namelen + 4
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+ unresolved_col_width + 2;
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hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
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symlen);
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hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
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symlen + 1);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
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symlen);
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hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
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symlen);
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}
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if (h->mem_info->iaddr.ms.sym) {
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symlen = (int)h->mem_info->iaddr.ms.sym->namelen + 4
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+ unresolved_col_width + 2;
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hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
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symlen);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
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symlen);
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}
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if (h->mem_info->daddr.ms.map) {
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symlen = dso__name_len(map__dso(h->mem_info->daddr.ms.map));
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hists__new_col_len(hists, HISTC_MEM_DADDR_DSO,
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symlen);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
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}
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hists__new_col_len(hists, HISTC_MEM_PHYS_DADDR,
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unresolved_col_width + 4 + 2);
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hists__new_col_len(hists, HISTC_MEM_DATA_PAGE_SIZE,
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unresolved_col_width + 4 + 2);
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} else {
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symlen = unresolved_col_width + 4 + 2;
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hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen);
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hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, symlen);
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hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
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}
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hists__new_col_len(hists, HISTC_CGROUP, 6);
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hists__new_col_len(hists, HISTC_CGROUP_ID, 20);
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hists__new_col_len(hists, HISTC_CPU, 3);
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hists__new_col_len(hists, HISTC_SOCKET, 6);
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hists__new_col_len(hists, HISTC_MEM_LOCKED, 6);
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hists__new_col_len(hists, HISTC_MEM_TLB, 22);
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hists__new_col_len(hists, HISTC_MEM_SNOOP, 12);
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hists__new_col_len(hists, HISTC_MEM_LVL, 36 + 3);
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hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
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hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
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hists__new_col_len(hists, HISTC_MEM_BLOCKED, 10);
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hists__new_col_len(hists, HISTC_LOCAL_INS_LAT, 13);
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hists__new_col_len(hists, HISTC_GLOBAL_INS_LAT, 13);
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hists__new_col_len(hists, HISTC_LOCAL_P_STAGE_CYC, 13);
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hists__new_col_len(hists, HISTC_GLOBAL_P_STAGE_CYC, 13);
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hists__new_col_len(hists, HISTC_ADDR, BITS_PER_LONG / 4 + 2);
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if (symbol_conf.nanosecs)
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hists__new_col_len(hists, HISTC_TIME, 16);
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else
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hists__new_col_len(hists, HISTC_TIME, 12);
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hists__new_col_len(hists, HISTC_CODE_PAGE_SIZE, 6);
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if (h->srcline) {
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len = MAX(strlen(h->srcline), strlen(sort_srcline.se_header));
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hists__new_col_len(hists, HISTC_SRCLINE, len);
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}
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if (h->srcfile)
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hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile));
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if (h->transaction)
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hists__new_col_len(hists, HISTC_TRANSACTION,
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hist_entry__transaction_len());
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if (h->trace_output)
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hists__new_col_len(hists, HISTC_TRACE, strlen(h->trace_output));
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if (h->cgroup) {
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const char *cgrp_name = "unknown";
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struct cgroup *cgrp = cgroup__find(maps__machine(h->ms.maps)->env,
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h->cgroup);
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if (cgrp != NULL)
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cgrp_name = cgrp->name;
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hists__new_col_len(hists, HISTC_CGROUP, strlen(cgrp_name));
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}
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}
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void hists__output_recalc_col_len(struct hists *hists, int max_rows)
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{
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struct rb_node *next = rb_first_cached(&hists->entries);
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struct hist_entry *n;
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int row = 0;
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hists__reset_col_len(hists);
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while (next && row++ < max_rows) {
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n = rb_entry(next, struct hist_entry, rb_node);
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if (!n->filtered)
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hists__calc_col_len(hists, n);
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next = rb_next(&n->rb_node);
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}
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}
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static void he_stat__add_cpumode_period(struct he_stat *he_stat,
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unsigned int cpumode, u64 period)
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{
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switch (cpumode) {
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case PERF_RECORD_MISC_KERNEL:
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he_stat->period_sys += period;
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break;
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case PERF_RECORD_MISC_USER:
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he_stat->period_us += period;
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break;
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case PERF_RECORD_MISC_GUEST_KERNEL:
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he_stat->period_guest_sys += period;
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break;
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case PERF_RECORD_MISC_GUEST_USER:
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he_stat->period_guest_us += period;
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break;
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default:
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break;
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}
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}
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static long hist_time(unsigned long htime)
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{
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unsigned long time_quantum = symbol_conf.time_quantum;
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if (time_quantum)
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return (htime / time_quantum) * time_quantum;
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return htime;
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}
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static void he_stat__add_period(struct he_stat *he_stat, u64 period)
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{
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he_stat->period += period;
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he_stat->nr_events += 1;
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}
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static void he_stat__add_stat(struct he_stat *dest, struct he_stat *src)
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{
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dest->period += src->period;
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dest->period_sys += src->period_sys;
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dest->period_us += src->period_us;
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dest->period_guest_sys += src->period_guest_sys;
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dest->period_guest_us += src->period_guest_us;
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dest->nr_events += src->nr_events;
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}
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static void he_stat__decay(struct he_stat *he_stat)
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{
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he_stat->period = (he_stat->period * 7) / 8;
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he_stat->nr_events = (he_stat->nr_events * 7) / 8;
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/* XXX need decay for weight too? */
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}
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static void hists__delete_entry(struct hists *hists, struct hist_entry *he);
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static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
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{
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u64 prev_period = he->stat.period;
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u64 diff;
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if (prev_period == 0)
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return true;
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he_stat__decay(&he->stat);
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if (symbol_conf.cumulate_callchain)
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he_stat__decay(he->stat_acc);
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decay_callchain(he->callchain);
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diff = prev_period - he->stat.period;
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if (!he->depth) {
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hists->stats.total_period -= diff;
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if (!he->filtered)
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hists->stats.total_non_filtered_period -= diff;
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}
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if (!he->leaf) {
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struct hist_entry *child;
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struct rb_node *node = rb_first_cached(&he->hroot_out);
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while (node) {
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child = rb_entry(node, struct hist_entry, rb_node);
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node = rb_next(node);
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if (hists__decay_entry(hists, child))
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hists__delete_entry(hists, child);
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}
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}
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return he->stat.period == 0;
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}
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static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
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{
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struct rb_root_cached *root_in;
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struct rb_root_cached *root_out;
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if (he->parent_he) {
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root_in = &he->parent_he->hroot_in;
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root_out = &he->parent_he->hroot_out;
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} else {
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if (hists__has(hists, need_collapse))
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root_in = &hists->entries_collapsed;
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else
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root_in = hists->entries_in;
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root_out = &hists->entries;
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}
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rb_erase_cached(&he->rb_node_in, root_in);
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rb_erase_cached(&he->rb_node, root_out);
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--hists->nr_entries;
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if (!he->filtered)
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--hists->nr_non_filtered_entries;
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hist_entry__delete(he);
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}
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void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
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{
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struct rb_node *next = rb_first_cached(&hists->entries);
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struct hist_entry *n;
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while (next) {
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n = rb_entry(next, struct hist_entry, rb_node);
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next = rb_next(&n->rb_node);
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if (((zap_user && n->level == '.') ||
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(zap_kernel && n->level != '.') ||
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hists__decay_entry(hists, n))) {
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hists__delete_entry(hists, n);
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}
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}
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}
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|
|
|
void hists__delete_entries(struct hists *hists)
|
|
{
|
|
struct rb_node *next = rb_first_cached(&hists->entries);
|
|
struct hist_entry *n;
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node);
|
|
next = rb_next(&n->rb_node);
|
|
|
|
hists__delete_entry(hists, n);
|
|
}
|
|
}
|
|
|
|
struct hist_entry *hists__get_entry(struct hists *hists, int idx)
|
|
{
|
|
struct rb_node *next = rb_first_cached(&hists->entries);
|
|
struct hist_entry *n;
|
|
int i = 0;
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node);
|
|
if (i == idx)
|
|
return n;
|
|
|
|
next = rb_next(&n->rb_node);
|
|
i++;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* histogram, sorted on item, collects periods
|
|
*/
|
|
|
|
static int hist_entry__init(struct hist_entry *he,
|
|
struct hist_entry *template,
|
|
bool sample_self,
|
|
size_t callchain_size)
|
|
{
|
|
*he = *template;
|
|
he->callchain_size = callchain_size;
|
|
|
|
if (symbol_conf.cumulate_callchain) {
|
|
he->stat_acc = malloc(sizeof(he->stat));
|
|
if (he->stat_acc == NULL)
|
|
return -ENOMEM;
|
|
memcpy(he->stat_acc, &he->stat, sizeof(he->stat));
|
|
if (!sample_self)
|
|
memset(&he->stat, 0, sizeof(he->stat));
|
|
}
|
|
|
|
he->ms.maps = maps__get(he->ms.maps);
|
|
he->ms.map = map__get(he->ms.map);
|
|
|
|
if (he->branch_info) {
|
|
/*
|
|
* This branch info is (a part of) allocated from
|
|
* sample__resolve_bstack() and will be freed after
|
|
* adding new entries. So we need to save a copy.
|
|
*/
|
|
he->branch_info = malloc(sizeof(*he->branch_info));
|
|
if (he->branch_info == NULL)
|
|
goto err;
|
|
|
|
memcpy(he->branch_info, template->branch_info,
|
|
sizeof(*he->branch_info));
|
|
|
|
he->branch_info->from.ms.map = map__get(he->branch_info->from.ms.map);
|
|
he->branch_info->to.ms.map = map__get(he->branch_info->to.ms.map);
|
|
}
|
|
|
|
if (he->mem_info) {
|
|
he->mem_info->iaddr.ms.map = map__get(he->mem_info->iaddr.ms.map);
|
|
he->mem_info->daddr.ms.map = map__get(he->mem_info->daddr.ms.map);
|
|
}
|
|
|
|
if (hist_entry__has_callchains(he) && symbol_conf.use_callchain)
|
|
callchain_init(he->callchain);
|
|
|
|
if (he->raw_data) {
|
|
he->raw_data = memdup(he->raw_data, he->raw_size);
|
|
if (he->raw_data == NULL)
|
|
goto err_infos;
|
|
}
|
|
|
|
if (he->srcline && he->srcline != SRCLINE_UNKNOWN) {
|
|
he->srcline = strdup(he->srcline);
|
|
if (he->srcline == NULL)
|
|
goto err_rawdata;
|
|
}
|
|
|
|
if (symbol_conf.res_sample) {
|
|
he->res_samples = calloc(sizeof(struct res_sample),
|
|
symbol_conf.res_sample);
|
|
if (!he->res_samples)
|
|
goto err_srcline;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&he->pairs.node);
|
|
he->thread = thread__get(he->thread);
|
|
he->hroot_in = RB_ROOT_CACHED;
|
|
he->hroot_out = RB_ROOT_CACHED;
|
|
|
|
if (!symbol_conf.report_hierarchy)
|
|
he->leaf = true;
|
|
|
|
return 0;
|
|
|
|
err_srcline:
|
|
zfree(&he->srcline);
|
|
|
|
err_rawdata:
|
|
zfree(&he->raw_data);
|
|
|
|
err_infos:
|
|
if (he->branch_info) {
|
|
map__put(he->branch_info->from.ms.map);
|
|
map__put(he->branch_info->to.ms.map);
|
|
zfree(&he->branch_info);
|
|
}
|
|
if (he->mem_info) {
|
|
map__put(he->mem_info->iaddr.ms.map);
|
|
map__put(he->mem_info->daddr.ms.map);
|
|
}
|
|
err:
|
|
maps__zput(he->ms.maps);
|
|
map__zput(he->ms.map);
|
|
zfree(&he->stat_acc);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void *hist_entry__zalloc(size_t size)
|
|
{
|
|
return zalloc(size + sizeof(struct hist_entry));
|
|
}
|
|
|
|
static void hist_entry__free(void *ptr)
|
|
{
|
|
free(ptr);
|
|
}
|
|
|
|
static struct hist_entry_ops default_ops = {
|
|
.new = hist_entry__zalloc,
|
|
.free = hist_entry__free,
|
|
};
|
|
|
|
static struct hist_entry *hist_entry__new(struct hist_entry *template,
|
|
bool sample_self)
|
|
{
|
|
struct hist_entry_ops *ops = template->ops;
|
|
size_t callchain_size = 0;
|
|
struct hist_entry *he;
|
|
int err = 0;
|
|
|
|
if (!ops)
|
|
ops = template->ops = &default_ops;
|
|
|
|
if (symbol_conf.use_callchain)
|
|
callchain_size = sizeof(struct callchain_root);
|
|
|
|
he = ops->new(callchain_size);
|
|
if (he) {
|
|
err = hist_entry__init(he, template, sample_self, callchain_size);
|
|
if (err) {
|
|
ops->free(he);
|
|
he = NULL;
|
|
}
|
|
}
|
|
|
|
return he;
|
|
}
|
|
|
|
static u8 symbol__parent_filter(const struct symbol *parent)
|
|
{
|
|
if (symbol_conf.exclude_other && parent == NULL)
|
|
return 1 << HIST_FILTER__PARENT;
|
|
return 0;
|
|
}
|
|
|
|
static void hist_entry__add_callchain_period(struct hist_entry *he, u64 period)
|
|
{
|
|
if (!hist_entry__has_callchains(he) || !symbol_conf.use_callchain)
|
|
return;
|
|
|
|
he->hists->callchain_period += period;
|
|
if (!he->filtered)
|
|
he->hists->callchain_non_filtered_period += period;
|
|
}
|
|
|
|
static struct hist_entry *hists__findnew_entry(struct hists *hists,
|
|
struct hist_entry *entry,
|
|
const struct addr_location *al,
|
|
bool sample_self)
|
|
{
|
|
struct rb_node **p;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *he;
|
|
int64_t cmp;
|
|
u64 period = entry->stat.period;
|
|
bool leftmost = true;
|
|
|
|
p = &hists->entries_in->rb_root.rb_node;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
he = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
/*
|
|
* Make sure that it receives arguments in a same order as
|
|
* hist_entry__collapse() so that we can use an appropriate
|
|
* function when searching an entry regardless which sort
|
|
* keys were used.
|
|
*/
|
|
cmp = hist_entry__cmp(he, entry);
|
|
if (!cmp) {
|
|
if (sample_self) {
|
|
he_stat__add_period(&he->stat, period);
|
|
hist_entry__add_callchain_period(he, period);
|
|
}
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_period(he->stat_acc, period);
|
|
|
|
/*
|
|
* This mem info was allocated from sample__resolve_mem
|
|
* and will not be used anymore.
|
|
*/
|
|
mem_info__zput(entry->mem_info);
|
|
|
|
block_info__zput(entry->block_info);
|
|
|
|
kvm_info__zput(entry->kvm_info);
|
|
|
|
/* If the map of an existing hist_entry has
|
|
* become out-of-date due to an exec() or
|
|
* similar, update it. Otherwise we will
|
|
* mis-adjust symbol addresses when computing
|
|
* the history counter to increment.
|
|
*/
|
|
if (he->ms.map != entry->ms.map) {
|
|
map__put(he->ms.map);
|
|
he->ms.map = map__get(entry->ms.map);
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
he = hist_entry__new(entry, sample_self);
|
|
if (!he)
|
|
return NULL;
|
|
|
|
if (sample_self)
|
|
hist_entry__add_callchain_period(he, period);
|
|
hists->nr_entries++;
|
|
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color_cached(&he->rb_node_in, hists->entries_in, leftmost);
|
|
out:
|
|
if (sample_self)
|
|
he_stat__add_cpumode_period(&he->stat, al->cpumode, period);
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period);
|
|
return he;
|
|
}
|
|
|
|
static unsigned random_max(unsigned high)
|
|
{
|
|
unsigned thresh = -high % high;
|
|
for (;;) {
|
|
unsigned r = random();
|
|
if (r >= thresh)
|
|
return r % high;
|
|
}
|
|
}
|
|
|
|
static void hists__res_sample(struct hist_entry *he, struct perf_sample *sample)
|
|
{
|
|
struct res_sample *r;
|
|
int j;
|
|
|
|
if (he->num_res < symbol_conf.res_sample) {
|
|
j = he->num_res++;
|
|
} else {
|
|
j = random_max(symbol_conf.res_sample);
|
|
}
|
|
r = &he->res_samples[j];
|
|
r->time = sample->time;
|
|
r->cpu = sample->cpu;
|
|
r->tid = sample->tid;
|
|
}
|
|
|
|
static struct hist_entry*
|
|
__hists__add_entry(struct hists *hists,
|
|
struct addr_location *al,
|
|
struct symbol *sym_parent,
|
|
struct branch_info *bi,
|
|
struct mem_info *mi,
|
|
struct kvm_info *ki,
|
|
struct block_info *block_info,
|
|
struct perf_sample *sample,
|
|
bool sample_self,
|
|
struct hist_entry_ops *ops)
|
|
{
|
|
struct namespaces *ns = thread__namespaces(al->thread);
|
|
struct hist_entry entry = {
|
|
.thread = al->thread,
|
|
.comm = thread__comm(al->thread),
|
|
.cgroup_id = {
|
|
.dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0,
|
|
.ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0,
|
|
},
|
|
.cgroup = sample->cgroup,
|
|
.ms = {
|
|
.maps = al->maps,
|
|
.map = al->map,
|
|
.sym = al->sym,
|
|
},
|
|
.srcline = (char *) al->srcline,
|
|
.socket = al->socket,
|
|
.cpu = al->cpu,
|
|
.cpumode = al->cpumode,
|
|
.ip = al->addr,
|
|
.level = al->level,
|
|
.code_page_size = sample->code_page_size,
|
|
.stat = {
|
|
.nr_events = 1,
|
|
.period = sample->period,
|
|
},
|
|
.parent = sym_parent,
|
|
.filtered = symbol__parent_filter(sym_parent) | al->filtered,
|
|
.hists = hists,
|
|
.branch_info = bi,
|
|
.mem_info = mi,
|
|
.kvm_info = ki,
|
|
.block_info = block_info,
|
|
.transaction = sample->transaction,
|
|
.raw_data = sample->raw_data,
|
|
.raw_size = sample->raw_size,
|
|
.ops = ops,
|
|
.time = hist_time(sample->time),
|
|
.weight = sample->weight,
|
|
.ins_lat = sample->ins_lat,
|
|
.p_stage_cyc = sample->p_stage_cyc,
|
|
.simd_flags = sample->simd_flags,
|
|
}, *he = hists__findnew_entry(hists, &entry, al, sample_self);
|
|
|
|
if (!hists->has_callchains && he && he->callchain_size != 0)
|
|
hists->has_callchains = true;
|
|
if (he && symbol_conf.res_sample)
|
|
hists__res_sample(he, sample);
|
|
return he;
|
|
}
|
|
|
|
struct hist_entry *hists__add_entry(struct hists *hists,
|
|
struct addr_location *al,
|
|
struct symbol *sym_parent,
|
|
struct branch_info *bi,
|
|
struct mem_info *mi,
|
|
struct kvm_info *ki,
|
|
struct perf_sample *sample,
|
|
bool sample_self)
|
|
{
|
|
return __hists__add_entry(hists, al, sym_parent, bi, mi, ki, NULL,
|
|
sample, sample_self, NULL);
|
|
}
|
|
|
|
struct hist_entry *hists__add_entry_ops(struct hists *hists,
|
|
struct hist_entry_ops *ops,
|
|
struct addr_location *al,
|
|
struct symbol *sym_parent,
|
|
struct branch_info *bi,
|
|
struct mem_info *mi,
|
|
struct kvm_info *ki,
|
|
struct perf_sample *sample,
|
|
bool sample_self)
|
|
{
|
|
return __hists__add_entry(hists, al, sym_parent, bi, mi, ki, NULL,
|
|
sample, sample_self, ops);
|
|
}
|
|
|
|
struct hist_entry *hists__add_entry_block(struct hists *hists,
|
|
struct addr_location *al,
|
|
struct block_info *block_info)
|
|
{
|
|
struct hist_entry entry = {
|
|
.block_info = block_info,
|
|
.hists = hists,
|
|
.ms = {
|
|
.maps = al->maps,
|
|
.map = al->map,
|
|
.sym = al->sym,
|
|
},
|
|
}, *he = hists__findnew_entry(hists, &entry, al, false);
|
|
|
|
return he;
|
|
}
|
|
|
|
static int
|
|
iter_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct perf_sample *sample = iter->sample;
|
|
struct mem_info *mi;
|
|
|
|
mi = sample__resolve_mem(sample, al);
|
|
if (mi == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->priv = mi;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
u64 cost;
|
|
struct mem_info *mi = iter->priv;
|
|
struct hists *hists = evsel__hists(iter->evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he;
|
|
|
|
if (mi == NULL)
|
|
return -EINVAL;
|
|
|
|
cost = sample->weight;
|
|
if (!cost)
|
|
cost = 1;
|
|
|
|
/*
|
|
* must pass period=weight in order to get the correct
|
|
* sorting from hists__collapse_resort() which is solely
|
|
* based on periods. We want sorting be done on nr_events * weight
|
|
* and this is indirectly achieved by passing period=weight here
|
|
* and the he_stat__add_period() function.
|
|
*/
|
|
sample->period = cost;
|
|
|
|
he = hists__add_entry(hists, al, iter->parent, NULL, mi, NULL,
|
|
sample, true);
|
|
if (!he)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_mem_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct hist_entry *he = iter->he;
|
|
int err = -EINVAL;
|
|
|
|
if (he == NULL)
|
|
goto out;
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
err = hist_entry__append_callchain(he, iter->sample);
|
|
|
|
out:
|
|
/*
|
|
* We don't need to free iter->priv (mem_info) here since the mem info
|
|
* was either already freed in hists__findnew_entry() or passed to a
|
|
* new hist entry by hist_entry__new().
|
|
*/
|
|
iter->priv = NULL;
|
|
|
|
iter->he = NULL;
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi;
|
|
struct perf_sample *sample = iter->sample;
|
|
|
|
bi = sample__resolve_bstack(sample, al);
|
|
if (!bi)
|
|
return -ENOMEM;
|
|
|
|
iter->curr = 0;
|
|
iter->total = sample->branch_stack->nr;
|
|
|
|
iter->priv = bi;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi = iter->priv;
|
|
int i = iter->curr;
|
|
|
|
if (bi == NULL)
|
|
return 0;
|
|
|
|
if (iter->curr >= iter->total)
|
|
return 0;
|
|
|
|
maps__put(al->maps);
|
|
al->maps = maps__get(bi[i].to.ms.maps);
|
|
map__put(al->map);
|
|
al->map = map__get(bi[i].to.ms.map);
|
|
al->sym = bi[i].to.ms.sym;
|
|
al->addr = bi[i].to.addr;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi;
|
|
struct evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he = NULL;
|
|
int i = iter->curr;
|
|
int err = 0;
|
|
|
|
bi = iter->priv;
|
|
|
|
if (iter->hide_unresolved && !(bi[i].from.ms.sym && bi[i].to.ms.sym))
|
|
goto out;
|
|
|
|
/*
|
|
* The report shows the percentage of total branches captured
|
|
* and not events sampled. Thus we use a pseudo period of 1.
|
|
*/
|
|
sample->period = 1;
|
|
sample->weight = bi->flags.cycles ? bi->flags.cycles : 1;
|
|
|
|
he = hists__add_entry(hists, al, iter->parent, &bi[i], NULL, NULL,
|
|
sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
out:
|
|
iter->he = he;
|
|
iter->curr++;
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_finish_branch_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
zfree(&iter->priv);
|
|
iter->he = NULL;
|
|
|
|
return iter->curr >= iter->total ? 0 : -1;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_normal_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he;
|
|
|
|
he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
|
|
NULL, sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_normal_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct hist_entry *he = iter->he;
|
|
struct evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
|
|
if (he == NULL)
|
|
return 0;
|
|
|
|
iter->he = NULL;
|
|
|
|
hists__inc_nr_samples(evsel__hists(evsel), he->filtered);
|
|
|
|
return hist_entry__append_callchain(he, sample);
|
|
}
|
|
|
|
static int
|
|
iter_prepare_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct hist_entry **he_cache;
|
|
struct callchain_cursor *cursor = get_tls_callchain_cursor();
|
|
|
|
if (cursor == NULL)
|
|
return -ENOMEM;
|
|
|
|
callchain_cursor_commit(cursor);
|
|
|
|
/*
|
|
* This is for detecting cycles or recursions so that they're
|
|
* cumulated only one time to prevent entries more than 100%
|
|
* overhead.
|
|
*/
|
|
he_cache = malloc(sizeof(*he_cache) * (cursor->nr + 1));
|
|
if (he_cache == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->priv = he_cache;
|
|
iter->curr = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry **he_cache = iter->priv;
|
|
struct hist_entry *he;
|
|
int err = 0;
|
|
|
|
he = hists__add_entry(hists, al, iter->parent, NULL, NULL, NULL,
|
|
sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
he_cache[iter->curr++] = he;
|
|
|
|
hist_entry__append_callchain(he, sample);
|
|
|
|
/*
|
|
* We need to re-initialize the cursor since callchain_append()
|
|
* advanced the cursor to the end.
|
|
*/
|
|
callchain_cursor_commit(get_tls_callchain_cursor());
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_next_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct callchain_cursor_node *node;
|
|
|
|
node = callchain_cursor_current(get_tls_callchain_cursor());
|
|
if (node == NULL)
|
|
return 0;
|
|
|
|
return fill_callchain_info(al, node, iter->hide_unresolved);
|
|
}
|
|
|
|
static bool
|
|
hist_entry__fast__sym_diff(struct hist_entry *left,
|
|
struct hist_entry *right)
|
|
{
|
|
struct symbol *sym_l = left->ms.sym;
|
|
struct symbol *sym_r = right->ms.sym;
|
|
|
|
if (!sym_l && !sym_r)
|
|
return left->ip != right->ip;
|
|
|
|
return !!_sort__sym_cmp(sym_l, sym_r);
|
|
}
|
|
|
|
|
|
static int
|
|
iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry **he_cache = iter->priv;
|
|
struct hist_entry *he;
|
|
struct hist_entry he_tmp = {
|
|
.hists = evsel__hists(evsel),
|
|
.cpu = al->cpu,
|
|
.thread = al->thread,
|
|
.comm = thread__comm(al->thread),
|
|
.ip = al->addr,
|
|
.ms = {
|
|
.maps = al->maps,
|
|
.map = al->map,
|
|
.sym = al->sym,
|
|
},
|
|
.srcline = (char *) al->srcline,
|
|
.parent = iter->parent,
|
|
.raw_data = sample->raw_data,
|
|
.raw_size = sample->raw_size,
|
|
};
|
|
int i;
|
|
struct callchain_cursor cursor, *tls_cursor = get_tls_callchain_cursor();
|
|
bool fast = hists__has(he_tmp.hists, sym);
|
|
|
|
if (tls_cursor == NULL)
|
|
return -ENOMEM;
|
|
|
|
callchain_cursor_snapshot(&cursor, tls_cursor);
|
|
|
|
callchain_cursor_advance(tls_cursor);
|
|
|
|
/*
|
|
* Check if there's duplicate entries in the callchain.
|
|
* It's possible that it has cycles or recursive calls.
|
|
*/
|
|
for (i = 0; i < iter->curr; i++) {
|
|
/*
|
|
* For most cases, there are no duplicate entries in callchain.
|
|
* The symbols are usually different. Do a quick check for
|
|
* symbols first.
|
|
*/
|
|
if (fast && hist_entry__fast__sym_diff(he_cache[i], &he_tmp))
|
|
continue;
|
|
|
|
if (hist_entry__cmp(he_cache[i], &he_tmp) == 0) {
|
|
/* to avoid calling callback function */
|
|
iter->he = NULL;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
|
|
NULL, sample, false);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
he_cache[iter->curr++] = he;
|
|
|
|
if (hist_entry__has_callchains(he) && symbol_conf.use_callchain)
|
|
callchain_append(he->callchain, &cursor, sample->period);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
zfree(&iter->priv);
|
|
iter->he = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct hist_iter_ops hist_iter_mem = {
|
|
.prepare_entry = iter_prepare_mem_entry,
|
|
.add_single_entry = iter_add_single_mem_entry,
|
|
.next_entry = iter_next_nop_entry,
|
|
.add_next_entry = iter_add_next_nop_entry,
|
|
.finish_entry = iter_finish_mem_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_branch = {
|
|
.prepare_entry = iter_prepare_branch_entry,
|
|
.add_single_entry = iter_add_single_branch_entry,
|
|
.next_entry = iter_next_branch_entry,
|
|
.add_next_entry = iter_add_next_branch_entry,
|
|
.finish_entry = iter_finish_branch_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_normal = {
|
|
.prepare_entry = iter_prepare_normal_entry,
|
|
.add_single_entry = iter_add_single_normal_entry,
|
|
.next_entry = iter_next_nop_entry,
|
|
.add_next_entry = iter_add_next_nop_entry,
|
|
.finish_entry = iter_finish_normal_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_cumulative = {
|
|
.prepare_entry = iter_prepare_cumulative_entry,
|
|
.add_single_entry = iter_add_single_cumulative_entry,
|
|
.next_entry = iter_next_cumulative_entry,
|
|
.add_next_entry = iter_add_next_cumulative_entry,
|
|
.finish_entry = iter_finish_cumulative_entry,
|
|
};
|
|
|
|
int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
|
|
int max_stack_depth, void *arg)
|
|
{
|
|
int err, err2;
|
|
struct map *alm = NULL;
|
|
|
|
if (al)
|
|
alm = map__get(al->map);
|
|
|
|
err = sample__resolve_callchain(iter->sample, get_tls_callchain_cursor(), &iter->parent,
|
|
iter->evsel, al, max_stack_depth);
|
|
if (err) {
|
|
map__put(alm);
|
|
return err;
|
|
}
|
|
|
|
err = iter->ops->prepare_entry(iter, al);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = iter->ops->add_single_entry(iter, al);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (iter->he && iter->add_entry_cb) {
|
|
err = iter->add_entry_cb(iter, al, true, arg);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
|
|
while (iter->ops->next_entry(iter, al)) {
|
|
err = iter->ops->add_next_entry(iter, al);
|
|
if (err)
|
|
break;
|
|
|
|
if (iter->he && iter->add_entry_cb) {
|
|
err = iter->add_entry_cb(iter, al, false, arg);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
err2 = iter->ops->finish_entry(iter, al);
|
|
if (!err)
|
|
err = err2;
|
|
|
|
map__put(alm);
|
|
|
|
return err;
|
|
}
|
|
|
|
int64_t
|
|
hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
|
|
{
|
|
struct hists *hists = left->hists;
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
hists__for_each_sort_list(hists, fmt) {
|
|
if (perf_hpp__is_dynamic_entry(fmt) &&
|
|
!perf_hpp__defined_dynamic_entry(fmt, hists))
|
|
continue;
|
|
|
|
cmp = fmt->cmp(fmt, left, right);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
int64_t
|
|
hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
|
|
{
|
|
struct hists *hists = left->hists;
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
hists__for_each_sort_list(hists, fmt) {
|
|
if (perf_hpp__is_dynamic_entry(fmt) &&
|
|
!perf_hpp__defined_dynamic_entry(fmt, hists))
|
|
continue;
|
|
|
|
cmp = fmt->collapse(fmt, left, right);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
void hist_entry__delete(struct hist_entry *he)
|
|
{
|
|
struct hist_entry_ops *ops = he->ops;
|
|
|
|
thread__zput(he->thread);
|
|
maps__zput(he->ms.maps);
|
|
map__zput(he->ms.map);
|
|
|
|
if (he->branch_info) {
|
|
map__zput(he->branch_info->from.ms.map);
|
|
map__zput(he->branch_info->to.ms.map);
|
|
zfree_srcline(&he->branch_info->srcline_from);
|
|
zfree_srcline(&he->branch_info->srcline_to);
|
|
zfree(&he->branch_info);
|
|
}
|
|
|
|
if (he->mem_info) {
|
|
map__zput(he->mem_info->iaddr.ms.map);
|
|
map__zput(he->mem_info->daddr.ms.map);
|
|
mem_info__zput(he->mem_info);
|
|
}
|
|
|
|
if (he->block_info)
|
|
block_info__zput(he->block_info);
|
|
|
|
if (he->kvm_info)
|
|
kvm_info__zput(he->kvm_info);
|
|
|
|
zfree(&he->res_samples);
|
|
zfree(&he->stat_acc);
|
|
zfree_srcline(&he->srcline);
|
|
if (he->srcfile && he->srcfile[0])
|
|
zfree(&he->srcfile);
|
|
free_callchain(he->callchain);
|
|
zfree(&he->trace_output);
|
|
zfree(&he->raw_data);
|
|
ops->free(he);
|
|
}
|
|
|
|
/*
|
|
* If this is not the last column, then we need to pad it according to the
|
|
* pre-calculated max length for this column, otherwise don't bother adding
|
|
* spaces because that would break viewing this with, for instance, 'less',
|
|
* that would show tons of trailing spaces when a long C++ demangled method
|
|
* names is sampled.
|
|
*/
|
|
int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
|
|
struct perf_hpp_fmt *fmt, int printed)
|
|
{
|
|
if (!list_is_last(&fmt->list, &he->hists->hpp_list->fields)) {
|
|
const int width = fmt->width(fmt, hpp, he->hists);
|
|
if (printed < width) {
|
|
advance_hpp(hpp, printed);
|
|
printed = scnprintf(hpp->buf, hpp->size, "%-*s", width - printed, " ");
|
|
}
|
|
}
|
|
|
|
return printed;
|
|
}
|
|
|
|
/*
|
|
* collapse the histogram
|
|
*/
|
|
|
|
static void hists__apply_filters(struct hists *hists, struct hist_entry *he);
|
|
static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *he,
|
|
enum hist_filter type);
|
|
|
|
typedef bool (*fmt_chk_fn)(struct perf_hpp_fmt *fmt);
|
|
|
|
static bool check_thread_entry(struct perf_hpp_fmt *fmt)
|
|
{
|
|
return perf_hpp__is_thread_entry(fmt) || perf_hpp__is_comm_entry(fmt);
|
|
}
|
|
|
|
static void hist_entry__check_and_remove_filter(struct hist_entry *he,
|
|
enum hist_filter type,
|
|
fmt_chk_fn check)
|
|
{
|
|
struct perf_hpp_fmt *fmt;
|
|
bool type_match = false;
|
|
struct hist_entry *parent = he->parent_he;
|
|
|
|
switch (type) {
|
|
case HIST_FILTER__THREAD:
|
|
if (symbol_conf.comm_list == NULL &&
|
|
symbol_conf.pid_list == NULL &&
|
|
symbol_conf.tid_list == NULL)
|
|
return;
|
|
break;
|
|
case HIST_FILTER__DSO:
|
|
if (symbol_conf.dso_list == NULL)
|
|
return;
|
|
break;
|
|
case HIST_FILTER__SYMBOL:
|
|
if (symbol_conf.sym_list == NULL)
|
|
return;
|
|
break;
|
|
case HIST_FILTER__PARENT:
|
|
case HIST_FILTER__GUEST:
|
|
case HIST_FILTER__HOST:
|
|
case HIST_FILTER__SOCKET:
|
|
case HIST_FILTER__C2C:
|
|
default:
|
|
return;
|
|
}
|
|
|
|
/* if it's filtered by own fmt, it has to have filter bits */
|
|
perf_hpp_list__for_each_format(he->hpp_list, fmt) {
|
|
if (check(fmt)) {
|
|
type_match = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (type_match) {
|
|
/*
|
|
* If the filter is for current level entry, propagate
|
|
* filter marker to parents. The marker bit was
|
|
* already set by default so it only needs to clear
|
|
* non-filtered entries.
|
|
*/
|
|
if (!(he->filtered & (1 << type))) {
|
|
while (parent) {
|
|
parent->filtered &= ~(1 << type);
|
|
parent = parent->parent_he;
|
|
}
|
|
}
|
|
} else {
|
|
/*
|
|
* If current entry doesn't have matching formats, set
|
|
* filter marker for upper level entries. it will be
|
|
* cleared if its lower level entries is not filtered.
|
|
*
|
|
* For lower-level entries, it inherits parent's
|
|
* filter bit so that lower level entries of a
|
|
* non-filtered entry won't set the filter marker.
|
|
*/
|
|
if (parent == NULL)
|
|
he->filtered |= (1 << type);
|
|
else
|
|
he->filtered |= (parent->filtered & (1 << type));
|
|
}
|
|
}
|
|
|
|
static void hist_entry__apply_hierarchy_filters(struct hist_entry *he)
|
|
{
|
|
hist_entry__check_and_remove_filter(he, HIST_FILTER__THREAD,
|
|
check_thread_entry);
|
|
|
|
hist_entry__check_and_remove_filter(he, HIST_FILTER__DSO,
|
|
perf_hpp__is_dso_entry);
|
|
|
|
hist_entry__check_and_remove_filter(he, HIST_FILTER__SYMBOL,
|
|
perf_hpp__is_sym_entry);
|
|
|
|
hists__apply_filters(he->hists, he);
|
|
}
|
|
|
|
static struct hist_entry *hierarchy_insert_entry(struct hists *hists,
|
|
struct rb_root_cached *root,
|
|
struct hist_entry *he,
|
|
struct hist_entry *parent_he,
|
|
struct perf_hpp_list *hpp_list)
|
|
{
|
|
struct rb_node **p = &root->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter, *new;
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp;
|
|
bool leftmost = true;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
cmp = 0;
|
|
perf_hpp_list__for_each_sort_list(hpp_list, fmt) {
|
|
cmp = fmt->collapse(fmt, iter, he);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
if (!cmp) {
|
|
he_stat__add_stat(&iter->stat, &he->stat);
|
|
return iter;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
p = &parent->rb_left;
|
|
else {
|
|
p = &parent->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
new = hist_entry__new(he, true);
|
|
if (new == NULL)
|
|
return NULL;
|
|
|
|
hists->nr_entries++;
|
|
|
|
/* save related format list for output */
|
|
new->hpp_list = hpp_list;
|
|
new->parent_he = parent_he;
|
|
|
|
hist_entry__apply_hierarchy_filters(new);
|
|
|
|
/* some fields are now passed to 'new' */
|
|
perf_hpp_list__for_each_sort_list(hpp_list, fmt) {
|
|
if (perf_hpp__is_trace_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
|
|
he->trace_output = NULL;
|
|
else
|
|
new->trace_output = NULL;
|
|
|
|
if (perf_hpp__is_srcline_entry(fmt))
|
|
he->srcline = NULL;
|
|
else
|
|
new->srcline = NULL;
|
|
|
|
if (perf_hpp__is_srcfile_entry(fmt))
|
|
he->srcfile = NULL;
|
|
else
|
|
new->srcfile = NULL;
|
|
}
|
|
|
|
rb_link_node(&new->rb_node_in, parent, p);
|
|
rb_insert_color_cached(&new->rb_node_in, root, leftmost);
|
|
return new;
|
|
}
|
|
|
|
static int hists__hierarchy_insert_entry(struct hists *hists,
|
|
struct rb_root_cached *root,
|
|
struct hist_entry *he)
|
|
{
|
|
struct perf_hpp_list_node *node;
|
|
struct hist_entry *new_he = NULL;
|
|
struct hist_entry *parent = NULL;
|
|
int depth = 0;
|
|
int ret = 0;
|
|
|
|
list_for_each_entry(node, &hists->hpp_formats, list) {
|
|
/* skip period (overhead) and elided columns */
|
|
if (node->level == 0 || node->skip)
|
|
continue;
|
|
|
|
/* insert copy of 'he' for each fmt into the hierarchy */
|
|
new_he = hierarchy_insert_entry(hists, root, he, parent, &node->hpp);
|
|
if (new_he == NULL) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
|
|
root = &new_he->hroot_in;
|
|
new_he->depth = depth++;
|
|
parent = new_he;
|
|
}
|
|
|
|
if (new_he) {
|
|
new_he->leaf = true;
|
|
|
|
if (hist_entry__has_callchains(new_he) &&
|
|
symbol_conf.use_callchain) {
|
|
struct callchain_cursor *cursor = get_tls_callchain_cursor();
|
|
|
|
if (cursor == NULL)
|
|
return -1;
|
|
|
|
callchain_cursor_reset(cursor);
|
|
if (callchain_merge(cursor,
|
|
new_he->callchain,
|
|
he->callchain) < 0)
|
|
ret = -1;
|
|
}
|
|
}
|
|
|
|
/* 'he' is no longer used */
|
|
hist_entry__delete(he);
|
|
|
|
/* return 0 (or -1) since it already applied filters */
|
|
return ret;
|
|
}
|
|
|
|
static int hists__collapse_insert_entry(struct hists *hists,
|
|
struct rb_root_cached *root,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node **p = &root->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
int64_t cmp;
|
|
bool leftmost = true;
|
|
|
|
if (symbol_conf.report_hierarchy)
|
|
return hists__hierarchy_insert_entry(hists, root, he);
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
cmp = hist_entry__collapse(iter, he);
|
|
|
|
if (!cmp) {
|
|
int ret = 0;
|
|
|
|
he_stat__add_stat(&iter->stat, &he->stat);
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_stat(iter->stat_acc, he->stat_acc);
|
|
|
|
if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
|
|
struct callchain_cursor *cursor = get_tls_callchain_cursor();
|
|
|
|
if (cursor != NULL) {
|
|
callchain_cursor_reset(cursor);
|
|
if (callchain_merge(cursor, iter->callchain, he->callchain) < 0)
|
|
ret = -1;
|
|
} else {
|
|
ret = 0;
|
|
}
|
|
}
|
|
hist_entry__delete(he);
|
|
return ret;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
hists->nr_entries++;
|
|
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color_cached(&he->rb_node_in, root, leftmost);
|
|
return 1;
|
|
}
|
|
|
|
struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists)
|
|
{
|
|
struct rb_root_cached *root;
|
|
|
|
mutex_lock(&hists->lock);
|
|
|
|
root = hists->entries_in;
|
|
if (++hists->entries_in > &hists->entries_in_array[1])
|
|
hists->entries_in = &hists->entries_in_array[0];
|
|
|
|
mutex_unlock(&hists->lock);
|
|
|
|
return root;
|
|
}
|
|
|
|
static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
|
|
{
|
|
hists__filter_entry_by_dso(hists, he);
|
|
hists__filter_entry_by_thread(hists, he);
|
|
hists__filter_entry_by_symbol(hists, he);
|
|
hists__filter_entry_by_socket(hists, he);
|
|
}
|
|
|
|
int hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node *next;
|
|
struct hist_entry *n;
|
|
int ret;
|
|
|
|
if (!hists__has(hists, need_collapse))
|
|
return 0;
|
|
|
|
hists->nr_entries = 0;
|
|
|
|
root = hists__get_rotate_entries_in(hists);
|
|
|
|
next = rb_first_cached(root);
|
|
|
|
while (next) {
|
|
if (session_done())
|
|
break;
|
|
n = rb_entry(next, struct hist_entry, rb_node_in);
|
|
next = rb_next(&n->rb_node_in);
|
|
|
|
rb_erase_cached(&n->rb_node_in, root);
|
|
ret = hists__collapse_insert_entry(hists, &hists->entries_collapsed, n);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if (ret) {
|
|
/*
|
|
* If it wasn't combined with one of the entries already
|
|
* collapsed, we need to apply the filters that may have
|
|
* been set by, say, the hist_browser.
|
|
*/
|
|
hists__apply_filters(hists, n);
|
|
}
|
|
if (prog)
|
|
ui_progress__update(prog, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int64_t hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
|
|
{
|
|
struct hists *hists = a->hists;
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
hists__for_each_sort_list(hists, fmt) {
|
|
if (perf_hpp__should_skip(fmt, a->hists))
|
|
continue;
|
|
|
|
cmp = fmt->sort(fmt, a, b);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
static void hists__reset_filter_stats(struct hists *hists)
|
|
{
|
|
hists->nr_non_filtered_entries = 0;
|
|
hists->stats.total_non_filtered_period = 0;
|
|
}
|
|
|
|
void hists__reset_stats(struct hists *hists)
|
|
{
|
|
hists->nr_entries = 0;
|
|
hists->stats.total_period = 0;
|
|
|
|
hists__reset_filter_stats(hists);
|
|
}
|
|
|
|
static void hists__inc_filter_stats(struct hists *hists, struct hist_entry *h)
|
|
{
|
|
hists->nr_non_filtered_entries++;
|
|
hists->stats.total_non_filtered_period += h->stat.period;
|
|
}
|
|
|
|
void hists__inc_stats(struct hists *hists, struct hist_entry *h)
|
|
{
|
|
if (!h->filtered)
|
|
hists__inc_filter_stats(hists, h);
|
|
|
|
hists->nr_entries++;
|
|
hists->stats.total_period += h->stat.period;
|
|
}
|
|
|
|
static void hierarchy_recalc_total_periods(struct hists *hists)
|
|
{
|
|
struct rb_node *node;
|
|
struct hist_entry *he;
|
|
|
|
node = rb_first_cached(&hists->entries);
|
|
|
|
hists->stats.total_period = 0;
|
|
hists->stats.total_non_filtered_period = 0;
|
|
|
|
/*
|
|
* recalculate total period using top-level entries only
|
|
* since lower level entries only see non-filtered entries
|
|
* but upper level entries have sum of both entries.
|
|
*/
|
|
while (node) {
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
node = rb_next(node);
|
|
|
|
hists->stats.total_period += he->stat.period;
|
|
if (!he->filtered)
|
|
hists->stats.total_non_filtered_period += he->stat.period;
|
|
}
|
|
}
|
|
|
|
static void hierarchy_insert_output_entry(struct rb_root_cached *root,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node **p = &root->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
struct perf_hpp_fmt *fmt;
|
|
bool leftmost = true;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node);
|
|
|
|
if (hist_entry__sort(he, iter) > 0)
|
|
p = &parent->rb_left;
|
|
else {
|
|
p = &parent->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
rb_link_node(&he->rb_node, parent, p);
|
|
rb_insert_color_cached(&he->rb_node, root, leftmost);
|
|
|
|
/* update column width of dynamic entry */
|
|
perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
|
|
if (fmt->init)
|
|
fmt->init(fmt, he);
|
|
}
|
|
}
|
|
|
|
static void hists__hierarchy_output_resort(struct hists *hists,
|
|
struct ui_progress *prog,
|
|
struct rb_root_cached *root_in,
|
|
struct rb_root_cached *root_out,
|
|
u64 min_callchain_hits,
|
|
bool use_callchain)
|
|
{
|
|
struct rb_node *node;
|
|
struct hist_entry *he;
|
|
|
|
*root_out = RB_ROOT_CACHED;
|
|
node = rb_first_cached(root_in);
|
|
|
|
while (node) {
|
|
he = rb_entry(node, struct hist_entry, rb_node_in);
|
|
node = rb_next(node);
|
|
|
|
hierarchy_insert_output_entry(root_out, he);
|
|
|
|
if (prog)
|
|
ui_progress__update(prog, 1);
|
|
|
|
hists->nr_entries++;
|
|
if (!he->filtered) {
|
|
hists->nr_non_filtered_entries++;
|
|
hists__calc_col_len(hists, he);
|
|
}
|
|
|
|
if (!he->leaf) {
|
|
hists__hierarchy_output_resort(hists, prog,
|
|
&he->hroot_in,
|
|
&he->hroot_out,
|
|
min_callchain_hits,
|
|
use_callchain);
|
|
continue;
|
|
}
|
|
|
|
if (!use_callchain)
|
|
continue;
|
|
|
|
if (callchain_param.mode == CHAIN_GRAPH_REL) {
|
|
u64 total = he->stat.period;
|
|
|
|
if (symbol_conf.cumulate_callchain)
|
|
total = he->stat_acc->period;
|
|
|
|
min_callchain_hits = total * (callchain_param.min_percent / 100);
|
|
}
|
|
|
|
callchain_param.sort(&he->sorted_chain, he->callchain,
|
|
min_callchain_hits, &callchain_param);
|
|
}
|
|
}
|
|
|
|
static void __hists__insert_output_entry(struct rb_root_cached *entries,
|
|
struct hist_entry *he,
|
|
u64 min_callchain_hits,
|
|
bool use_callchain)
|
|
{
|
|
struct rb_node **p = &entries->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
struct perf_hpp_fmt *fmt;
|
|
bool leftmost = true;
|
|
|
|
if (use_callchain) {
|
|
if (callchain_param.mode == CHAIN_GRAPH_REL) {
|
|
u64 total = he->stat.period;
|
|
|
|
if (symbol_conf.cumulate_callchain)
|
|
total = he->stat_acc->period;
|
|
|
|
min_callchain_hits = total * (callchain_param.min_percent / 100);
|
|
}
|
|
callchain_param.sort(&he->sorted_chain, he->callchain,
|
|
min_callchain_hits, &callchain_param);
|
|
}
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node);
|
|
|
|
if (hist_entry__sort(he, iter) > 0)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
rb_link_node(&he->rb_node, parent, p);
|
|
rb_insert_color_cached(&he->rb_node, entries, leftmost);
|
|
|
|
/* update column width of dynamic entries */
|
|
perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) {
|
|
if (fmt->init)
|
|
fmt->init(fmt, he);
|
|
}
|
|
}
|
|
|
|
static void output_resort(struct hists *hists, struct ui_progress *prog,
|
|
bool use_callchain, hists__resort_cb_t cb,
|
|
void *cb_arg)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node *next;
|
|
struct hist_entry *n;
|
|
u64 callchain_total;
|
|
u64 min_callchain_hits;
|
|
|
|
callchain_total = hists->callchain_period;
|
|
if (symbol_conf.filter_relative)
|
|
callchain_total = hists->callchain_non_filtered_period;
|
|
|
|
min_callchain_hits = callchain_total * (callchain_param.min_percent / 100);
|
|
|
|
hists__reset_stats(hists);
|
|
hists__reset_col_len(hists);
|
|
|
|
if (symbol_conf.report_hierarchy) {
|
|
hists__hierarchy_output_resort(hists, prog,
|
|
&hists->entries_collapsed,
|
|
&hists->entries,
|
|
min_callchain_hits,
|
|
use_callchain);
|
|
hierarchy_recalc_total_periods(hists);
|
|
return;
|
|
}
|
|
|
|
if (hists__has(hists, need_collapse))
|
|
root = &hists->entries_collapsed;
|
|
else
|
|
root = hists->entries_in;
|
|
|
|
next = rb_first_cached(root);
|
|
hists->entries = RB_ROOT_CACHED;
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node_in);
|
|
next = rb_next(&n->rb_node_in);
|
|
|
|
if (cb && cb(n, cb_arg))
|
|
continue;
|
|
|
|
__hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain);
|
|
hists__inc_stats(hists, n);
|
|
|
|
if (!n->filtered)
|
|
hists__calc_col_len(hists, n);
|
|
|
|
if (prog)
|
|
ui_progress__update(prog, 1);
|
|
}
|
|
}
|
|
|
|
void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog,
|
|
hists__resort_cb_t cb, void *cb_arg)
|
|
{
|
|
bool use_callchain;
|
|
|
|
if (evsel && symbol_conf.use_callchain && !symbol_conf.show_ref_callgraph)
|
|
use_callchain = evsel__has_callchain(evsel);
|
|
else
|
|
use_callchain = symbol_conf.use_callchain;
|
|
|
|
use_callchain |= symbol_conf.show_branchflag_count;
|
|
|
|
output_resort(evsel__hists(evsel), prog, use_callchain, cb, cb_arg);
|
|
}
|
|
|
|
void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog)
|
|
{
|
|
return evsel__output_resort_cb(evsel, prog, NULL, NULL);
|
|
}
|
|
|
|
void hists__output_resort(struct hists *hists, struct ui_progress *prog)
|
|
{
|
|
output_resort(hists, prog, symbol_conf.use_callchain, NULL, NULL);
|
|
}
|
|
|
|
void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog,
|
|
hists__resort_cb_t cb)
|
|
{
|
|
output_resort(hists, prog, symbol_conf.use_callchain, cb, NULL);
|
|
}
|
|
|
|
static bool can_goto_child(struct hist_entry *he, enum hierarchy_move_dir hmd)
|
|
{
|
|
if (he->leaf || hmd == HMD_FORCE_SIBLING)
|
|
return false;
|
|
|
|
if (he->unfolded || hmd == HMD_FORCE_CHILD)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
struct rb_node *rb_hierarchy_last(struct rb_node *node)
|
|
{
|
|
struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
|
|
|
|
while (can_goto_child(he, HMD_NORMAL)) {
|
|
node = rb_last(&he->hroot_out.rb_root);
|
|
he = rb_entry(node, struct hist_entry, rb_node);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
struct rb_node *__rb_hierarchy_next(struct rb_node *node, enum hierarchy_move_dir hmd)
|
|
{
|
|
struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
|
|
|
|
if (can_goto_child(he, hmd))
|
|
node = rb_first_cached(&he->hroot_out);
|
|
else
|
|
node = rb_next(node);
|
|
|
|
while (node == NULL) {
|
|
he = he->parent_he;
|
|
if (he == NULL)
|
|
break;
|
|
|
|
node = rb_next(&he->rb_node);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
struct rb_node *rb_hierarchy_prev(struct rb_node *node)
|
|
{
|
|
struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
|
|
|
|
node = rb_prev(node);
|
|
if (node)
|
|
return rb_hierarchy_last(node);
|
|
|
|
he = he->parent_he;
|
|
if (he == NULL)
|
|
return NULL;
|
|
|
|
return &he->rb_node;
|
|
}
|
|
|
|
bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit)
|
|
{
|
|
struct rb_node *node;
|
|
struct hist_entry *child;
|
|
float percent;
|
|
|
|
if (he->leaf)
|
|
return false;
|
|
|
|
node = rb_first_cached(&he->hroot_out);
|
|
child = rb_entry(node, struct hist_entry, rb_node);
|
|
|
|
while (node && child->filtered) {
|
|
node = rb_next(node);
|
|
child = rb_entry(node, struct hist_entry, rb_node);
|
|
}
|
|
|
|
if (node)
|
|
percent = hist_entry__get_percent_limit(child);
|
|
else
|
|
percent = 0;
|
|
|
|
return node && percent >= limit;
|
|
}
|
|
|
|
static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
|
|
enum hist_filter filter)
|
|
{
|
|
h->filtered &= ~(1 << filter);
|
|
|
|
if (symbol_conf.report_hierarchy) {
|
|
struct hist_entry *parent = h->parent_he;
|
|
|
|
while (parent) {
|
|
he_stat__add_stat(&parent->stat, &h->stat);
|
|
|
|
parent->filtered &= ~(1 << filter);
|
|
|
|
if (parent->filtered)
|
|
goto next;
|
|
|
|
/* force fold unfiltered entry for simplicity */
|
|
parent->unfolded = false;
|
|
parent->has_no_entry = false;
|
|
parent->row_offset = 0;
|
|
parent->nr_rows = 0;
|
|
next:
|
|
parent = parent->parent_he;
|
|
}
|
|
}
|
|
|
|
if (h->filtered)
|
|
return;
|
|
|
|
/* force fold unfiltered entry for simplicity */
|
|
h->unfolded = false;
|
|
h->has_no_entry = false;
|
|
h->row_offset = 0;
|
|
h->nr_rows = 0;
|
|
|
|
hists->stats.nr_non_filtered_samples += h->stat.nr_events;
|
|
|
|
hists__inc_filter_stats(hists, h);
|
|
hists__calc_col_len(hists, h);
|
|
}
|
|
|
|
|
|
static bool hists__filter_entry_by_dso(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->dso_filter != NULL &&
|
|
(he->ms.map == NULL || map__dso(he->ms.map) != hists->dso_filter)) {
|
|
he->filtered |= (1 << HIST_FILTER__DSO);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_thread(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->thread_filter != NULL &&
|
|
RC_CHK_ACCESS(he->thread) != RC_CHK_ACCESS(hists->thread_filter)) {
|
|
he->filtered |= (1 << HIST_FILTER__THREAD);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_symbol(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->symbol_filter_str != NULL &&
|
|
(!he->ms.sym || strstr(he->ms.sym->name,
|
|
hists->symbol_filter_str) == NULL)) {
|
|
he->filtered |= (1 << HIST_FILTER__SYMBOL);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_socket(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if ((hists->socket_filter > -1) &&
|
|
(he->socket != hists->socket_filter)) {
|
|
he->filtered |= (1 << HIST_FILTER__SOCKET);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
typedef bool (*filter_fn_t)(struct hists *hists, struct hist_entry *he);
|
|
|
|
static void hists__filter_by_type(struct hists *hists, int type, filter_fn_t filter)
|
|
{
|
|
struct rb_node *nd;
|
|
|
|
hists->stats.nr_non_filtered_samples = 0;
|
|
|
|
hists__reset_filter_stats(hists);
|
|
hists__reset_col_len(hists);
|
|
|
|
for (nd = rb_first_cached(&hists->entries); nd; nd = rb_next(nd)) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
|
|
if (filter(hists, h))
|
|
continue;
|
|
|
|
hists__remove_entry_filter(hists, h, type);
|
|
}
|
|
}
|
|
|
|
static void resort_filtered_entry(struct rb_root_cached *root,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node **p = &root->rb_root.rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
struct rb_root_cached new_root = RB_ROOT_CACHED;
|
|
struct rb_node *nd;
|
|
bool leftmost = true;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node);
|
|
|
|
if (hist_entry__sort(he, iter) > 0)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
rb_link_node(&he->rb_node, parent, p);
|
|
rb_insert_color_cached(&he->rb_node, root, leftmost);
|
|
|
|
if (he->leaf || he->filtered)
|
|
return;
|
|
|
|
nd = rb_first_cached(&he->hroot_out);
|
|
while (nd) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
|
|
nd = rb_next(nd);
|
|
rb_erase_cached(&h->rb_node, &he->hroot_out);
|
|
|
|
resort_filtered_entry(&new_root, h);
|
|
}
|
|
|
|
he->hroot_out = new_root;
|
|
}
|
|
|
|
static void hists__filter_hierarchy(struct hists *hists, int type, const void *arg)
|
|
{
|
|
struct rb_node *nd;
|
|
struct rb_root_cached new_root = RB_ROOT_CACHED;
|
|
|
|
hists->stats.nr_non_filtered_samples = 0;
|
|
|
|
hists__reset_filter_stats(hists);
|
|
hists__reset_col_len(hists);
|
|
|
|
nd = rb_first_cached(&hists->entries);
|
|
while (nd) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
int ret;
|
|
|
|
ret = hist_entry__filter(h, type, arg);
|
|
|
|
/*
|
|
* case 1. non-matching type
|
|
* zero out the period, set filter marker and move to child
|
|
*/
|
|
if (ret < 0) {
|
|
memset(&h->stat, 0, sizeof(h->stat));
|
|
h->filtered |= (1 << type);
|
|
|
|
nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_CHILD);
|
|
}
|
|
/*
|
|
* case 2. matched type (filter out)
|
|
* set filter marker and move to next
|
|
*/
|
|
else if (ret == 1) {
|
|
h->filtered |= (1 << type);
|
|
|
|
nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING);
|
|
}
|
|
/*
|
|
* case 3. ok (not filtered)
|
|
* add period to hists and parents, erase the filter marker
|
|
* and move to next sibling
|
|
*/
|
|
else {
|
|
hists__remove_entry_filter(hists, h, type);
|
|
|
|
nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING);
|
|
}
|
|
}
|
|
|
|
hierarchy_recalc_total_periods(hists);
|
|
|
|
/*
|
|
* resort output after applying a new filter since filter in a lower
|
|
* hierarchy can change periods in a upper hierarchy.
|
|
*/
|
|
nd = rb_first_cached(&hists->entries);
|
|
while (nd) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
|
|
nd = rb_next(nd);
|
|
rb_erase_cached(&h->rb_node, &hists->entries);
|
|
|
|
resort_filtered_entry(&new_root, h);
|
|
}
|
|
|
|
hists->entries = new_root;
|
|
}
|
|
|
|
void hists__filter_by_thread(struct hists *hists)
|
|
{
|
|
if (symbol_conf.report_hierarchy)
|
|
hists__filter_hierarchy(hists, HIST_FILTER__THREAD,
|
|
hists->thread_filter);
|
|
else
|
|
hists__filter_by_type(hists, HIST_FILTER__THREAD,
|
|
hists__filter_entry_by_thread);
|
|
}
|
|
|
|
void hists__filter_by_dso(struct hists *hists)
|
|
{
|
|
if (symbol_conf.report_hierarchy)
|
|
hists__filter_hierarchy(hists, HIST_FILTER__DSO,
|
|
hists->dso_filter);
|
|
else
|
|
hists__filter_by_type(hists, HIST_FILTER__DSO,
|
|
hists__filter_entry_by_dso);
|
|
}
|
|
|
|
void hists__filter_by_symbol(struct hists *hists)
|
|
{
|
|
if (symbol_conf.report_hierarchy)
|
|
hists__filter_hierarchy(hists, HIST_FILTER__SYMBOL,
|
|
hists->symbol_filter_str);
|
|
else
|
|
hists__filter_by_type(hists, HIST_FILTER__SYMBOL,
|
|
hists__filter_entry_by_symbol);
|
|
}
|
|
|
|
void hists__filter_by_socket(struct hists *hists)
|
|
{
|
|
if (symbol_conf.report_hierarchy)
|
|
hists__filter_hierarchy(hists, HIST_FILTER__SOCKET,
|
|
&hists->socket_filter);
|
|
else
|
|
hists__filter_by_type(hists, HIST_FILTER__SOCKET,
|
|
hists__filter_entry_by_socket);
|
|
}
|
|
|
|
void events_stats__inc(struct events_stats *stats, u32 type)
|
|
{
|
|
++stats->nr_events[0];
|
|
++stats->nr_events[type];
|
|
}
|
|
|
|
static void hists_stats__inc(struct hists_stats *stats)
|
|
{
|
|
++stats->nr_samples;
|
|
}
|
|
|
|
void hists__inc_nr_events(struct hists *hists)
|
|
{
|
|
hists_stats__inc(&hists->stats);
|
|
}
|
|
|
|
void hists__inc_nr_samples(struct hists *hists, bool filtered)
|
|
{
|
|
hists_stats__inc(&hists->stats);
|
|
if (!filtered)
|
|
hists->stats.nr_non_filtered_samples++;
|
|
}
|
|
|
|
void hists__inc_nr_lost_samples(struct hists *hists, u32 lost)
|
|
{
|
|
hists->stats.nr_lost_samples += lost;
|
|
}
|
|
|
|
static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
|
|
struct hist_entry *pair)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node **p;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *he;
|
|
int64_t cmp;
|
|
bool leftmost = true;
|
|
|
|
if (hists__has(hists, need_collapse))
|
|
root = &hists->entries_collapsed;
|
|
else
|
|
root = hists->entries_in;
|
|
|
|
p = &root->rb_root.rb_node;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
he = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
cmp = hist_entry__collapse(he, pair);
|
|
|
|
if (!cmp)
|
|
goto out;
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else {
|
|
p = &(*p)->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
he = hist_entry__new(pair, true);
|
|
if (he) {
|
|
memset(&he->stat, 0, sizeof(he->stat));
|
|
he->hists = hists;
|
|
if (symbol_conf.cumulate_callchain)
|
|
memset(he->stat_acc, 0, sizeof(he->stat));
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color_cached(&he->rb_node_in, root, leftmost);
|
|
hists__inc_stats(hists, he);
|
|
he->dummy = true;
|
|
}
|
|
out:
|
|
return he;
|
|
}
|
|
|
|
static struct hist_entry *add_dummy_hierarchy_entry(struct hists *hists,
|
|
struct rb_root_cached *root,
|
|
struct hist_entry *pair)
|
|
{
|
|
struct rb_node **p;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *he;
|
|
struct perf_hpp_fmt *fmt;
|
|
bool leftmost = true;
|
|
|
|
p = &root->rb_root.rb_node;
|
|
while (*p != NULL) {
|
|
int64_t cmp = 0;
|
|
|
|
parent = *p;
|
|
he = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
|
|
cmp = fmt->collapse(fmt, he, pair);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
if (!cmp)
|
|
goto out;
|
|
|
|
if (cmp < 0)
|
|
p = &parent->rb_left;
|
|
else {
|
|
p = &parent->rb_right;
|
|
leftmost = false;
|
|
}
|
|
}
|
|
|
|
he = hist_entry__new(pair, true);
|
|
if (he) {
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color_cached(&he->rb_node_in, root, leftmost);
|
|
|
|
he->dummy = true;
|
|
he->hists = hists;
|
|
memset(&he->stat, 0, sizeof(he->stat));
|
|
hists__inc_stats(hists, he);
|
|
}
|
|
out:
|
|
return he;
|
|
}
|
|
|
|
static struct hist_entry *hists__find_entry(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node *n;
|
|
|
|
if (hists__has(hists, need_collapse))
|
|
n = hists->entries_collapsed.rb_root.rb_node;
|
|
else
|
|
n = hists->entries_in->rb_root.rb_node;
|
|
|
|
while (n) {
|
|
struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node_in);
|
|
int64_t cmp = hist_entry__collapse(iter, he);
|
|
|
|
if (cmp < 0)
|
|
n = n->rb_left;
|
|
else if (cmp > 0)
|
|
n = n->rb_right;
|
|
else
|
|
return iter;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static struct hist_entry *hists__find_hierarchy_entry(struct rb_root_cached *root,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node *n = root->rb_root.rb_node;
|
|
|
|
while (n) {
|
|
struct hist_entry *iter;
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
iter = rb_entry(n, struct hist_entry, rb_node_in);
|
|
perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
|
|
cmp = fmt->collapse(fmt, iter, he);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
n = n->rb_left;
|
|
else if (cmp > 0)
|
|
n = n->rb_right;
|
|
else
|
|
return iter;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void hists__match_hierarchy(struct rb_root_cached *leader_root,
|
|
struct rb_root_cached *other_root)
|
|
{
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *pair;
|
|
|
|
for (nd = rb_first_cached(leader_root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
pair = hists__find_hierarchy_entry(other_root, pos);
|
|
|
|
if (pair) {
|
|
hist_entry__add_pair(pair, pos);
|
|
hists__match_hierarchy(&pos->hroot_in, &pair->hroot_in);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Look for pairs to link to the leader buckets (hist_entries):
|
|
*/
|
|
void hists__match(struct hists *leader, struct hists *other)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *pair;
|
|
|
|
if (symbol_conf.report_hierarchy) {
|
|
/* hierarchy report always collapses entries */
|
|
return hists__match_hierarchy(&leader->entries_collapsed,
|
|
&other->entries_collapsed);
|
|
}
|
|
|
|
if (hists__has(leader, need_collapse))
|
|
root = &leader->entries_collapsed;
|
|
else
|
|
root = leader->entries_in;
|
|
|
|
for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
pair = hists__find_entry(other, pos);
|
|
|
|
if (pair)
|
|
hist_entry__add_pair(pair, pos);
|
|
}
|
|
}
|
|
|
|
static int hists__link_hierarchy(struct hists *leader_hists,
|
|
struct hist_entry *parent,
|
|
struct rb_root_cached *leader_root,
|
|
struct rb_root_cached *other_root)
|
|
{
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *leader;
|
|
|
|
for (nd = rb_first_cached(other_root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
|
|
if (hist_entry__has_pairs(pos)) {
|
|
bool found = false;
|
|
|
|
list_for_each_entry(leader, &pos->pairs.head, pairs.node) {
|
|
if (leader->hists == leader_hists) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
return -1;
|
|
} else {
|
|
leader = add_dummy_hierarchy_entry(leader_hists,
|
|
leader_root, pos);
|
|
if (leader == NULL)
|
|
return -1;
|
|
|
|
/* do not point parent in the pos */
|
|
leader->parent_he = parent;
|
|
|
|
hist_entry__add_pair(pos, leader);
|
|
}
|
|
|
|
if (!pos->leaf) {
|
|
if (hists__link_hierarchy(leader_hists, leader,
|
|
&leader->hroot_in,
|
|
&pos->hroot_in) < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Look for entries in the other hists that are not present in the leader, if
|
|
* we find them, just add a dummy entry on the leader hists, with period=0,
|
|
* nr_events=0, to serve as the list header.
|
|
*/
|
|
int hists__link(struct hists *leader, struct hists *other)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *pair;
|
|
|
|
if (symbol_conf.report_hierarchy) {
|
|
/* hierarchy report always collapses entries */
|
|
return hists__link_hierarchy(leader, NULL,
|
|
&leader->entries_collapsed,
|
|
&other->entries_collapsed);
|
|
}
|
|
|
|
if (hists__has(other, need_collapse))
|
|
root = &other->entries_collapsed;
|
|
else
|
|
root = other->entries_in;
|
|
|
|
for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
|
|
if (!hist_entry__has_pairs(pos)) {
|
|
pair = hists__add_dummy_entry(leader, pos);
|
|
if (pair == NULL)
|
|
return -1;
|
|
hist_entry__add_pair(pos, pair);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int hists__unlink(struct hists *hists)
|
|
{
|
|
struct rb_root_cached *root;
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos;
|
|
|
|
if (hists__has(hists, need_collapse))
|
|
root = &hists->entries_collapsed;
|
|
else
|
|
root = hists->entries_in;
|
|
|
|
for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
list_del_init(&pos->pairs.node);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
|
|
struct perf_sample *sample, bool nonany_branch_mode,
|
|
u64 *total_cycles)
|
|
{
|
|
struct branch_info *bi;
|
|
struct branch_entry *entries = perf_sample__branch_entries(sample);
|
|
|
|
/* If we have branch cycles always annotate them. */
|
|
if (bs && bs->nr && entries[0].flags.cycles) {
|
|
int i;
|
|
|
|
bi = sample__resolve_bstack(sample, al);
|
|
if (bi) {
|
|
struct addr_map_symbol *prev = NULL;
|
|
|
|
/*
|
|
* Ignore errors, still want to process the
|
|
* other entries.
|
|
*
|
|
* For non standard branch modes always
|
|
* force no IPC (prev == NULL)
|
|
*
|
|
* Note that perf stores branches reversed from
|
|
* program order!
|
|
*/
|
|
for (i = bs->nr - 1; i >= 0; i--) {
|
|
addr_map_symbol__account_cycles(&bi[i].from,
|
|
nonany_branch_mode ? NULL : prev,
|
|
bi[i].flags.cycles);
|
|
prev = &bi[i].to;
|
|
|
|
if (total_cycles)
|
|
*total_cycles += bi[i].flags.cycles;
|
|
}
|
|
free(bi);
|
|
}
|
|
}
|
|
}
|
|
|
|
size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp,
|
|
bool skip_empty)
|
|
{
|
|
struct evsel *pos;
|
|
size_t ret = 0;
|
|
|
|
evlist__for_each_entry(evlist, pos) {
|
|
struct hists *hists = evsel__hists(pos);
|
|
|
|
if (skip_empty && !hists->stats.nr_samples && !hists->stats.nr_lost_samples)
|
|
continue;
|
|
|
|
ret += fprintf(fp, "%s stats:\n", evsel__name(pos));
|
|
if (hists->stats.nr_samples)
|
|
ret += fprintf(fp, "%16s events: %10d\n",
|
|
"SAMPLE", hists->stats.nr_samples);
|
|
if (hists->stats.nr_lost_samples)
|
|
ret += fprintf(fp, "%16s events: %10d\n",
|
|
"LOST_SAMPLES", hists->stats.nr_lost_samples);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
u64 hists__total_period(struct hists *hists)
|
|
{
|
|
return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period :
|
|
hists->stats.total_period;
|
|
}
|
|
|
|
int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq)
|
|
{
|
|
char unit;
|
|
int printed;
|
|
const struct dso *dso = hists->dso_filter;
|
|
struct thread *thread = hists->thread_filter;
|
|
int socket_id = hists->socket_filter;
|
|
unsigned long nr_samples = hists->stats.nr_samples;
|
|
u64 nr_events = hists->stats.total_period;
|
|
struct evsel *evsel = hists_to_evsel(hists);
|
|
const char *ev_name = evsel__name(evsel);
|
|
char buf[512], sample_freq_str[64] = "";
|
|
size_t buflen = sizeof(buf);
|
|
char ref[30] = " show reference callgraph, ";
|
|
bool enable_ref = false;
|
|
|
|
if (symbol_conf.filter_relative) {
|
|
nr_samples = hists->stats.nr_non_filtered_samples;
|
|
nr_events = hists->stats.total_non_filtered_period;
|
|
}
|
|
|
|
if (evsel__is_group_event(evsel)) {
|
|
struct evsel *pos;
|
|
|
|
evsel__group_desc(evsel, buf, buflen);
|
|
ev_name = buf;
|
|
|
|
for_each_group_member(pos, evsel) {
|
|
struct hists *pos_hists = evsel__hists(pos);
|
|
|
|
if (symbol_conf.filter_relative) {
|
|
nr_samples += pos_hists->stats.nr_non_filtered_samples;
|
|
nr_events += pos_hists->stats.total_non_filtered_period;
|
|
} else {
|
|
nr_samples += pos_hists->stats.nr_samples;
|
|
nr_events += pos_hists->stats.total_period;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (symbol_conf.show_ref_callgraph &&
|
|
strstr(ev_name, "call-graph=no"))
|
|
enable_ref = true;
|
|
|
|
if (show_freq)
|
|
scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->core.attr.sample_freq);
|
|
|
|
nr_samples = convert_unit(nr_samples, &unit);
|
|
printed = scnprintf(bf, size,
|
|
"Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
|
|
nr_samples, unit, evsel->core.nr_members > 1 ? "s" : "",
|
|
ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
|
|
|
|
|
|
if (hists->uid_filter_str)
|
|
printed += snprintf(bf + printed, size - printed,
|
|
", UID: %s", hists->uid_filter_str);
|
|
if (thread) {
|
|
if (hists__has(hists, thread)) {
|
|
printed += scnprintf(bf + printed, size - printed,
|
|
", Thread: %s(%d)",
|
|
(thread__comm_set(thread) ? thread__comm_str(thread) : ""),
|
|
thread__tid(thread));
|
|
} else {
|
|
printed += scnprintf(bf + printed, size - printed,
|
|
", Thread: %s",
|
|
(thread__comm_set(thread) ? thread__comm_str(thread) : ""));
|
|
}
|
|
}
|
|
if (dso)
|
|
printed += scnprintf(bf + printed, size - printed,
|
|
", DSO: %s", dso->short_name);
|
|
if (socket_id > -1)
|
|
printed += scnprintf(bf + printed, size - printed,
|
|
", Processor Socket: %d", socket_id);
|
|
|
|
return printed;
|
|
}
|
|
|
|
int parse_filter_percentage(const struct option *opt __maybe_unused,
|
|
const char *arg, int unset __maybe_unused)
|
|
{
|
|
if (!strcmp(arg, "relative"))
|
|
symbol_conf.filter_relative = true;
|
|
else if (!strcmp(arg, "absolute"))
|
|
symbol_conf.filter_relative = false;
|
|
else {
|
|
pr_debug("Invalid percentage: %s\n", arg);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int perf_hist_config(const char *var, const char *value)
|
|
{
|
|
if (!strcmp(var, "hist.percentage"))
|
|
return parse_filter_percentage(NULL, value, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list)
|
|
{
|
|
memset(hists, 0, sizeof(*hists));
|
|
hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT_CACHED;
|
|
hists->entries_in = &hists->entries_in_array[0];
|
|
hists->entries_collapsed = RB_ROOT_CACHED;
|
|
hists->entries = RB_ROOT_CACHED;
|
|
mutex_init(&hists->lock);
|
|
hists->socket_filter = -1;
|
|
hists->hpp_list = hpp_list;
|
|
INIT_LIST_HEAD(&hists->hpp_formats);
|
|
return 0;
|
|
}
|
|
|
|
static void hists__delete_remaining_entries(struct rb_root_cached *root)
|
|
{
|
|
struct rb_node *node;
|
|
struct hist_entry *he;
|
|
|
|
while (!RB_EMPTY_ROOT(&root->rb_root)) {
|
|
node = rb_first_cached(root);
|
|
rb_erase_cached(node, root);
|
|
|
|
he = rb_entry(node, struct hist_entry, rb_node_in);
|
|
hist_entry__delete(he);
|
|
}
|
|
}
|
|
|
|
static void hists__delete_all_entries(struct hists *hists)
|
|
{
|
|
hists__delete_entries(hists);
|
|
hists__delete_remaining_entries(&hists->entries_in_array[0]);
|
|
hists__delete_remaining_entries(&hists->entries_in_array[1]);
|
|
hists__delete_remaining_entries(&hists->entries_collapsed);
|
|
}
|
|
|
|
static void hists_evsel__exit(struct evsel *evsel)
|
|
{
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct perf_hpp_fmt *fmt, *pos;
|
|
struct perf_hpp_list_node *node, *tmp;
|
|
|
|
hists__delete_all_entries(hists);
|
|
|
|
list_for_each_entry_safe(node, tmp, &hists->hpp_formats, list) {
|
|
perf_hpp_list__for_each_format_safe(&node->hpp, fmt, pos) {
|
|
list_del_init(&fmt->list);
|
|
free(fmt);
|
|
}
|
|
list_del_init(&node->list);
|
|
free(node);
|
|
}
|
|
}
|
|
|
|
static int hists_evsel__init(struct evsel *evsel)
|
|
{
|
|
struct hists *hists = evsel__hists(evsel);
|
|
|
|
__hists__init(hists, &perf_hpp_list);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* XXX We probably need a hists_evsel__exit() to free the hist_entries
|
|
* stored in the rbtree...
|
|
*/
|
|
|
|
int hists__init(void)
|
|
{
|
|
int err = evsel__object_config(sizeof(struct hists_evsel),
|
|
hists_evsel__init, hists_evsel__exit);
|
|
if (err)
|
|
fputs("FATAL ERROR: Couldn't setup hists class\n", stderr);
|
|
|
|
return err;
|
|
}
|
|
|
|
void perf_hpp_list__init(struct perf_hpp_list *list)
|
|
{
|
|
INIT_LIST_HEAD(&list->fields);
|
|
INIT_LIST_HEAD(&list->sorts);
|
|
}
|