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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/builtin-top.c | |
| parent | 064f19815c4e99e8b22bc3c5f4d7f4e0b96d226a (diff) | |
| download | blackbird-op-linux-fa5df94350510571cbe825f333996f57223b3cd2.tar.gz blackbird-op-linux-fa5df94350510571cbe825f333996f57223b3cd2.zip | |
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/builtin-top.c')
| -rw-r--r-- | tools/perf/builtin-top.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 19fe25f6e4f0..f036af9b6f09 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -296,7 +296,8 @@ static void perf_top__print_sym_table(struct perf_top *top) top->print_entries - printed); putchar('\n'); hists__fprintf(&top->sym_evsel->hists, false, - top->print_entries - printed, win_width, 0, stdout); + top->print_entries - printed, win_width, + top->min_percent, stdout); } static void prompt_integer(int *target, const char *msg) @@ -580,7 +581,7 @@ static void *display_thread_tui(void *arg) list_for_each_entry(pos, &top->evlist->entries, node) pos->hists.uid_filter_str = top->record_opts.target.uid_str; - perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 0, + perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, &top->session->header.env); done = 1; @@ -1021,6 +1022,16 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset) return record_parse_callchain_opt(opt, arg, unset); } +static int +parse_percent_limit(const struct option *opt, const char *arg, + int unset __maybe_unused) +{ + struct perf_top *top = opt->value; + + top->min_percent = strtof(arg, NULL); + return 0; +} + int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) { int status; @@ -1106,6 +1117,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), + OPT_CALLBACK(0, "percent-limit", &top, "percent", + "Don't show entries under that percent", parse_percent_limit), OPT_END() }; const char * const top_usage[] = { |
