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authorThomas Renninger <trenn@suse.de>2011-01-03 17:50:44 +0100
committerIngo Molnar <mingo@elte.hu>2011-01-04 08:16:54 +0100
commit25e41933b58777f2d020c3b0186b430ea004ec28 (patch)
treea4ea8bb52509139b52c35d540928c12b33098f40 /drivers/idle
parent61a0d49c33c7fd57c14895e5b0760bd02b65ac1f (diff)
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.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 15783d5501a..56ac09d6c93 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 *)&current_thread_info()->flags, 0, 0);