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perf stat: Quieten failed to read counter message

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Since 3b3eb0445 running perf stat on a system without
backend-stalled-cycles spits out ugly warnings by default.

Since that is quite common, make the message a debug message only.

We know anyways that the counter wasn't read by the normal <unsupported>
output.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1441147966-14917-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen 2015-09-01 15:52:46 -07:00 committed by Arnaldo Carvalho de Melo
parent 2bb00d2f95
commit 245bad8eb4
1 changed files with 1 additions and 1 deletions
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2
tools/perf/builtin-stat.c
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@ -215,7 +215,7 @@ static void read_counters(bool close_counters)
evlist__for_each(evsel_list, counter) {
if (read_counter(counter))
pr_warning("failed to read counter %s\n", counter->name);
pr_debug("failed to read counter %s\n", counter->name);
if (perf_stat_process_counter(&stat_config, counter))
pr_warning("failed to process counter %s\n", counter->name);