perf report: Introduce --socket-filter option

Introduce --socket-filter option for 'perf report' to only show entries
for a processor socket that match this filter.

  $ perf report --socket-filter 1 --stdio
  # To display the perf.data header info, please use --header/--header-only options.
  #
  # Total Lost Samples: 0
  #
  # Samples: 752  of event 'cycles'
  # Event count (approx.): 350995599
  # Processor Socket: 1
  #
  # Overhead  Command    Shared Object     Symbol
  # ........  .........  ................  .................................
  #
      97.02%  test       test              [.] plusB_c
       0.97%  test       test              [.] plusA_c
       0.23%  swapper    [kernel.vmlinux]  [k] acpi_idle_do_entry
       0.09%  rcu_sched  [kernel.vmlinux]  [k] dyntick_save_progress_counter
       0.01%  swapper    [kernel.vmlinux]  [k] task_waking_fair
       0.00%  swapper    [kernel.vmlinux]  [k] run_timer_softirq

Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1441377946-44429-3-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2015-09-04 10:45:44 -04:00 committed by Arnaldo Carvalho de Melo
parent 2e7ea3ab82
commit 21394d948a
5 changed files with 37 additions and 1 deletions

View file

@ -350,6 +350,9 @@ include::itrace.txt[]
This option extends the perf report to show reference callgraphs,
which collected by reference event, in no callgraph event.
--socket-filter::
Only report the samples on the processor socket that match with this filter
include::callchain-overhead-calculation.txt[]
SEE ALSO

View file

@ -62,6 +62,7 @@ struct report {
float min_percent;
u64 nr_entries;
u64 queue_size;
int socket_filter;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};
@ -286,6 +287,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
struct perf_evsel *evsel = hists_to_evsel(hists);
char buf[512];
size_t size = sizeof(buf);
int socket = hists->socket_filter;
if (symbol_conf.filter_relative) {
nr_samples = hists->stats.nr_non_filtered_samples;
@ -326,6 +328,10 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
} else
ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
if (socket > -1)
ret += fprintf(fp, "\n# Processor Socket: %d", socket);
return ret + fprintf(fp, "\n#\n");
}
@ -450,6 +456,8 @@ static void report__collapse_hists(struct report *rep)
if (pos->idx == 0)
hists->symbol_filter_str = rep->symbol_filter_str;
hists->socket_filter = rep->socket_filter;
hists__collapse_resort(hists, &prog);
/* Non-group events are considered as leader */
@ -635,6 +643,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
},
.max_stack = PERF_MAX_STACK_DEPTH,
.pretty_printing_style = "normal",
.socket_filter = -1,
};
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
@ -747,6 +756,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"Show full source file name path for source lines"),
OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
"Show callgraph from reference event"),
OPT_INTEGER(0, "socket-filter", &report.socket_filter,
"only show processor socket that match with this filter"),
OPT_END()
};
struct perf_data_file file = {

View file

@ -1261,6 +1261,7 @@ static int hists__browser_title(struct hists *hists,
int printed;
const struct dso *dso = hists->dso_filter;
const struct thread *thread = hists->thread_filter;
int socket = hists->socket_filter;
unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
u64 nr_events = hists->stats.total_period;
struct perf_evsel *evsel = hists_to_evsel(hists);
@ -1314,6 +1315,9 @@ static int hists__browser_title(struct hists *hists,
if (dso)
printed += scnprintf(bf + printed, size - printed,
", DSO: %s", dso->short_name);
if (socket > -1)
printed += scnprintf(bf + printed, size - printed,
", Processor Socket: %d", socket);
if (!is_report_browser(hbt)) {
struct perf_top *top = hbt->arg;

View file

@ -15,6 +15,8 @@ static bool hists__filter_entry_by_thread(struct hists *hists,
struct hist_entry *he);
static bool hists__filter_entry_by_symbol(struct hists *hists,
struct hist_entry *he);
static bool hists__filter_entry_by_socket(struct hists *hists,
struct hist_entry *he);
u16 hists__col_len(struct hists *hists, enum hist_column col)
{
@ -1027,6 +1029,7 @@ 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);
}
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
@ -1295,6 +1298,18 @@ void hists__filter_by_symbol(struct hists *hists)
}
}
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;
}
void events_stats__inc(struct events_stats *stats, u32 type)
{
++stats->nr_events[0];
@ -1520,6 +1535,7 @@ static int hists_evsel__init(struct perf_evsel *evsel)
hists->entries_collapsed = RB_ROOT;
hists->entries = RB_ROOT;
pthread_mutex_init(&hists->lock, NULL);
hists->socket_filter = -1;
return 0;
}

View file

@ -20,6 +20,7 @@ enum hist_filter {
HIST_FILTER__SYMBOL,
HIST_FILTER__GUEST,
HIST_FILTER__HOST,
HIST_FILTER__SOCKET,
};
enum hist_column {
@ -71,6 +72,7 @@ struct hists {
struct events_stats stats;
u64 event_stream;
u16 col_len[HISTC_NR_COLS];
int socket_filter;
};
struct hist_entry_iter;
@ -149,7 +151,7 @@ void hists__filter_by_symbol(struct hists *hists);
static inline bool hists__has_filter(struct hists *hists)
{
return hists->thread_filter || hists->dso_filter ||
hists->symbol_filter_str;
hists->symbol_filter_str || (hists->socket_filter > -1);
}
u16 hists__col_len(struct hists *hists, enum hist_column col);