[PATCH 06/31] perf stat: Quieten failed to read counter message

From: Arnaldo Carvalho de Melo
Date: Fri Sep 04 2015 - 12:51:56 EST

From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

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>

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441147966-14917-1-git-send-email-andi@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/builtin-stat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d46dbb1bc65d..a96fb5c3bedb 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -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);

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