Messages in this thread | | | Date | Wed, 23 Nov 2016 21:06:33 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 03/14] perf/x86: output multiplexing overhead |
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On Wed, Nov 23, 2016 at 04:44:41AM -0500, kan.liang@intel.com wrote: > From: Kan Liang <kan.liang@intel.com> > > Multiplexing overhead is one of the key overhead when the number of > events is more than available counters. > > Signed-off-by: Kan Liang <kan.liang@intel.com> > --- > include/linux/perf_event.h | 2 ++ > include/uapi/linux/perf_event.h | 1 + > kernel/events/core.c | 16 ++++++++++++++++ > 3 files changed, 19 insertions(+)
The subject says x86 specific, but its _all_ core code.
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