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| author | Thomas Renninger <trenn@suse.de> | 2011-01-03 17:50:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-04 08:16:54 +0100 |
| commit | 25e41933b58777f2d020c3b0186b430ea004ec28 (patch) | |
| tree | a4ea8bb52509139b52c35d540928c12b33098f40 /drivers/idle | |
| parent | 61a0d49c33c7fd57c14895e5b0760bd02b65ac1f (diff) | |
| download | kernel-common-25e41933b58777f2d020c3b0186b430ea004ec28.tar.gz kernel-common-25e41933b58777f2d020c3b0186b430ea004ec28.tar.bz2 kernel-common-25e41933b58777f2d020c3b0186b430ea004ec28.zip | |
perf: Clean up power events by introducing new, more generic ones
Add these new power trace events:
power:cpu_idle
power:cpu_frequency
power:machine_suspend
The old C-state/idle accounting events:
power:power_start
power:power_end
Have now a replacement (but we are still keeping the old
tracepoints for compatibility):
power:cpu_idle
and
power:power_frequency
is replaced with:
power:cpu_frequency
power:machine_suspend is newly introduced.
Jean Pihet has a patch integrated into the generic layer
(kernel/power/suspend.c) which will make use of it.
the type= field got removed from both, it was never
used and the type is differed by the event type itself.
perf timechart userspace tool gets adjusted in a separate patch.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Jean Pihet <jean.pihet@newoldbits.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: rjw@sisk.pl
LKML-Reference: <1294073445-14812-3-git-send-email-trenn@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <1290072314-31155-2-git-send-email-trenn@suse.de>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 15783d5501a8..56ac09d6c930 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -221,6 +221,7 @@ static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state) stop_critical_timings(); trace_power_start(POWER_CSTATE, (eax >> 4) + 1, cpu); + trace_cpu_idle((eax >> 4) + 1, cpu); if (!need_resched()) { __monitor((void *)¤t_thread_info()->flags, 0, 0); |