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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-05-14 11:09:04 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-05-28 16:24:01 +0300 |
| commit | 064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a (patch) | |
| tree | 80630db03ec2432aa9a7a4975fa3a6f6fc3ac32b /tools/perf/builtin-report.c | |
| parent | f3dd19817e5bbcae81e96571a3d42aa30a1581fb (diff) | |
| download | op-kernel-dev-064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a.zip op-kernel-dev-064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a.tar.gz | |
perf report: Add --percent-limit option
The --percent-limit option is for not showing small overhead entries in
the output. Maybe we want to set a certain default value like 0.1.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1368497347-9628-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-report.c')
| -rw-r--r-- | tools/perf/builtin-report.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 0f0cf24..0a4979b 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -52,6 +52,7 @@ struct perf_report { symbol_filter_t annotate_init; const char *cpu_list; const char *symbol_filter_str; + float min_percent; DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); }; @@ -456,7 +457,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, continue; hists__fprintf_nr_sample_events(rep, hists, evname, stdout); - hists__fprintf(hists, true, 0, 0, stdout); + hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout); fprintf(stdout, "\n\n"); } @@ -575,8 +576,8 @@ static int __cmd_report(struct perf_report *rep) if (use_browser > 0) { if (use_browser == 1) { ret = perf_evlist__tui_browse_hists(session->evlist, - help, - NULL, + help, NULL, + rep->min_percent, &session->header.env); /* * Usually "ret" is the last pressed key, and we only @@ -587,7 +588,7 @@ static int __cmd_report(struct perf_report *rep) } else if (use_browser == 2) { perf_evlist__gtk_browse_hists(session->evlist, help, - NULL); + NULL, rep->min_percent); } } else perf_evlist__tty_browse_hists(session->evlist, rep, help); @@ -698,6 +699,16 @@ parse_branch_mode(const struct option *opt __maybe_unused, return 0; } +static int +parse_percent_limit(const struct option *opt, const char *str, + int unset __maybe_unused) +{ + struct perf_report *rep = opt->value; + + rep->min_percent = strtof(str, NULL); + return 0; +} + int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) { struct perf_session *session; @@ -807,6 +818,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, "Disable symbol demangling"), OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), + OPT_CALLBACK(0, "percent-limit", &report, "percent", + "Don't show entries under that percent", parse_percent_limit), OPT_END() }; |
