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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-05-14 11:09:05 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-05-28 16:24:01 +0300 |
| commit | fa5df94350510571cbe825f333996f57223b3cd2 (patch) | |
| tree | 77325e41ab7f635d032b5b397cfa24889c07044d /tools/perf/ui | |
| parent | 064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a (diff) | |
| download | op-kernel-dev-fa5df94350510571cbe825f333996f57223b3cd2.zip op-kernel-dev-fa5df94350510571cbe825f333996f57223b3cd2.tar.gz | |
perf top: Add --percent-limit option
The --percent-limit option is for not showing small overhead entries in
the output.
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/1368497347-9628-8-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/ui')
| -rw-r--r-- | tools/perf/ui/browsers/hists.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 9dfde61..fc0bd38 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -310,6 +310,8 @@ static void ui_browser__warn_lost_events(struct ui_browser *browser) "Or reduce the sampling frequency."); } +static void hist_browser__update_pcnt_entries(struct hist_browser *hb); + static int hist_browser__run(struct hist_browser *browser, const char *ev_name, struct hist_browser_timer *hbt) { @@ -333,9 +335,18 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, key = ui_browser__run(&browser->b, delay_secs); switch (key) { - case K_TIMER: + case K_TIMER: { + u64 nr_entries; hbt->timer(hbt->arg); - ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries); + + if (browser->min_pcnt) { + hist_browser__update_pcnt_entries(browser); + nr_entries = browser->nr_pcnt_entries; + } else { + nr_entries = browser->hists->nr_entries; + } + + ui_browser__update_nr_entries(&browser->b, nr_entries); if (browser->hists->stats.nr_lost_warned != browser->hists->stats.nr_events[PERF_RECORD_LOST]) { @@ -347,6 +358,7 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, hists__browser_title(browser->hists, title, sizeof(title), ev_name); ui_browser__show_title(&browser->b, title); continue; + } case 'D': { /* Debug */ static int seq; struct hist_entry *h = rb_entry(browser->b.top, |
