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41b740b6e8
Add an option to control the synthesizing behavior.
--synth <no|all|task|mmap|cgroup>
Fine-tune event synthesis: default=all
This can be useful when we know it doesn't need some synthesis like
in a specific usecase and/or when using pipe:
$ perf record -a --all-cgroups --synth cgroup -o- sleep 1 | \
> perf report -i- -s cgroup
Committer notes:
Added a clarification to the man page entry for --synth that this is
about pre-existing threads.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https //lore.kernel.org/r/20210811044658.1313391-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PERF_RECORD_H
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#define _PERF_RECORD_H
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#include <time.h>
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#include <stdbool.h>
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#include <linux/types.h>
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#include <linux/stddef.h>
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#include <linux/perf_event.h>
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#include "util/target.h"
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struct option;
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struct record_opts {
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struct target target;
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bool group;
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bool inherit_stat;
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bool no_buffering;
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bool no_inherit;
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bool no_inherit_set;
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bool no_samples;
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bool raw_samples;
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bool sample_address;
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bool sample_phys_addr;
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bool sample_data_page_size;
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bool sample_code_page_size;
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bool sample_weight;
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bool sample_time;
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bool sample_time_set;
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bool sample_cpu;
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bool period;
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bool period_set;
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bool running_time;
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bool full_auxtrace;
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bool auxtrace_snapshot_mode;
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bool auxtrace_snapshot_on_exit;
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bool auxtrace_sample_mode;
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bool record_namespaces;
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bool record_cgroup;
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bool record_switch_events;
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bool record_switch_events_set;
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bool all_kernel;
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bool all_user;
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bool kernel_callchains;
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bool user_callchains;
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bool tail_synthesize;
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bool overwrite;
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bool ignore_missing_thread;
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bool strict_freq;
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bool sample_id;
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bool no_bpf_event;
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bool kcore;
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bool text_poke;
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bool build_id;
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unsigned int freq;
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unsigned int mmap_pages;
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unsigned int auxtrace_mmap_pages;
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unsigned int user_freq;
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u64 branch_stack;
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u64 sample_intr_regs;
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u64 sample_user_regs;
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u64 default_interval;
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u64 user_interval;
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size_t auxtrace_snapshot_size;
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const char *auxtrace_snapshot_opts;
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const char *auxtrace_sample_opts;
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bool sample_transaction;
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int initial_delay;
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bool use_clockid;
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clockid_t clockid;
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u64 clockid_res_ns;
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int nr_cblocks;
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int affinity;
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int mmap_flush;
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unsigned int comp_level;
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unsigned int nr_threads_synthesize;
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int ctl_fd;
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int ctl_fd_ack;
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bool ctl_fd_close;
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int synth;
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};
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extern const char * const *record_usage;
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extern struct option *record_options;
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int record__parse_freq(const struct option *opt, const char *str, int unset);
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static inline bool record_opts__no_switch_events(const struct record_opts *opts)
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{
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return opts->record_switch_events_set && !opts->record_switch_events;
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}
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#endif // _PERF_RECORD_H
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