diff options
| author | Namhyung Kim <[email protected]> | 2013-05-14 11:09:04 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2013-05-28 16:24:01 +0300 |
| commit | 064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a (patch) | |
| tree | 80630db03ec2432aa9a7a4975fa3a6f6fc3ac32b /tools/perf/ui/stdio/hist.c | |
| parent | f3dd19817e5bbcae81e96571a3d42aa30a1581fb (diff) | |
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 <[email protected]>
Acked-by: Pekka Enberg <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/ui/stdio/hist.c')
| -rw-r--r-- | tools/perf/ui/stdio/hist.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index ff1f60cf442e..ae7a75432249 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -334,7 +334,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size, } size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, - int max_cols, FILE *fp) + int max_cols, float min_pcnt, FILE *fp) { struct perf_hpp_fmt *fmt; struct sort_entry *se; @@ -440,10 +440,15 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, print_entries: for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) { struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); + float percent = h->stat.period * 100.0 / + hists->stats.total_period; if (h->filtered) continue; + if (percent < min_pcnt) + continue; + ret += hist_entry__fprintf(h, max_cols, hists, fp); if (max_rows && ++nr_rows >= max_rows) |