Re: [PATCH 03/14] perf/x86: output multiplexing overhead

[Peter Zijlstra]

On Wed, Nov 23, 2016 at 04:44:41AM -0500, kan.liang@xxxxxxxxx wrote:
> From: Kan Liang <kan.liang@xxxxxxxxx>
> 
> 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@xxxxxxxxx>
> ---
>  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.