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| author | David Ahern <[email protected]> | 2016-08-01 20:49:29 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-08-02 08:23:57 +0000 |
| commit | 0d87d7ec22a0879d3926faa4f4f4412a5dee1fba (patch) | |
| tree | 8ee6e51bc056e8e57dc3ffb920c854ac69099290 /tools/perf/builtin-script.c | |
| parent | perf/x86: Modify error message in virtualized environment (diff) | |
| download | kernel-0d87d7ec22a0879d3926faa4f4f4412a5dee1fba.tar.gz kernel-0d87d7ec22a0879d3926faa4f4f4412a5dee1fba.zip | |
perf/core: Change log level for duration warning to KERN_INFO
When the perf interrupt handler exceeds a threshold warning messages
are displayed on console:
[12739.31793] perf interrupt took too long (2504 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[71340.165065] perf interrupt took too long (5005 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
Many customers and users are confused by the message wondering if
something is wrong or they need to take action to fix a problem.
Since a user can not do anything to fix the issue, the message is really
more informational than a warning. Adjust the log level accordingly.
Signed-off-by: David Ahern <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/builtin-script.c')
0 files changed, 0 insertions, 0 deletions