• Thomas Renninger's avatar
    perf: Clean up power events by introducing new, more generic ones · 25e41933
    Thomas Renninger authored
    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: default avatarThomas Renninger <trenn@suse.de>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    Acked-by: default avatarArjan van de Ven <arjan@linux.intel.com>
    Acked-by: default avatarJean 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: default avatarIngo Molnar <mingo@elte.hu>
    LKML-Reference: <1290072314-31155-2-git-send-email-trenn@suse.de>
    25e41933
intel_idle.c 11.3 KB