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perf report: Fix the output for stdio events list

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Changing the output header for reporting forced groups via --groups
option on non grouped events, like:

  $ perf record -e 'cycles,instructions'
  $ perf report --stdio --group

Before:

  # Samples: 24  of event 'anon group { cycles:u, instructions:u }'

After:

  # Samples: 24  of events 'cycles:u, instructions:u'

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Fixes: ad52b8cb48 ("perf report: Add support to display group output for non group events")
Link: http://lkml.kernel.org/r/20180307155020.32613-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2018-03-07 16:50:02 +01:00
committed by Arnaldo Carvalho de Melo
parent 0b58a77ca8
commit 8ef278bb93
4 changed files with 34 additions and 9 deletions
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5
tools/perf/ui/browsers/hists.c
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@@ -2261,8 +2261,9 @@ static int perf_evsel_browser_title(struct hist_browser *browser,
nr_samples = convert_unit(nr_samples, &unit);
printed = scnprintf(bf, size,
"Samples: %lu%c of event '%s',%s%sEvent count (approx.): %" PRIu64,
nr_samples, unit, ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
"Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
nr_samples, unit, evsel->nr_members > 1 ? "s" : "",
ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
if (hists->uid_filter_str)