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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-03-01 14:22:12 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-03-05 09:58:43 -0300
commita9980a6dbb9efd154b032ad729c869784302f361 (patch)
treeeac1fe24f22121023d0c3eb722d62e80d8bd95c2 /tools/perf/ui
parentperf record: Allow asking for the maximum allowed sample rate (diff)
downloadlinux-dev-a9980a6dbb9efd154b032ad729c869784302f361.tar.xz
linux-dev-a9980a6dbb9efd154b032ad729c869784302f361.zip
perf top browser: Show sample_freq in browser title line
The '--stdio' 'perf top' UI shows it, so lets remove this UI difference and show it too in '--tui', will be useful for 'perf top --tui -F max'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-n3wd8n395uo4y9irst29pjic@git.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.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 6495ee55d9c3..de2bde232cb3 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2223,7 +2223,7 @@ static int perf_evsel_browser_title(struct hist_browser *browser,
u64 nr_events = hists->stats.total_period;
struct perf_evsel *evsel = hists_to_evsel(hists);
const char *ev_name = perf_evsel__name(evsel);
- char buf[512];
+ char buf[512], sample_freq_str[64] = "";
size_t buflen = sizeof(buf);
char ref[30] = " show reference callgraph, ";
bool enable_ref = false;
@@ -2255,10 +2255,14 @@ static int perf_evsel_browser_title(struct hist_browser *browser,
if (symbol_conf.show_ref_callgraph &&
strstr(ev_name, "call-graph=no"))
enable_ref = true;
+
+ if (!is_report_browser(hbt))
+ scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq);
+
nr_samples = convert_unit(nr_samples, &unit);
printed = scnprintf(bf, size,
- "Samples: %lu%c of event '%s',%sEvent count (approx.): %" PRIu64,
- nr_samples, unit, ev_name, enable_ref ? ref : " ", nr_events);
+ "Samples: %lu%c of event '%s',%s%sEvent count (approx.): %" PRIu64,
+ nr_samples, unit, ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
if (hists->uid_filter_str)