Re: [PATCH 1/2] perf, tools: Implement branch_type event parameter
From: Jiri Olsa
Date: Thu Oct 13 2016 - 07:43:12 EST
On Wed, Oct 12, 2016 at 02:02:06PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> It can be useful to specify branch type state per event, for example
> if we want to collect both software trace points and last branch PMU
> events in a single collection. Currently this doesn't work because
> the software trace point errors out with -b.
> There was already a branch-type parameter to configure branch sample
> types per event in the parser, but it was stubbed out. This patch
> implements the necessary plumbing to actually enable it.
> perf record -e sched:sched_switch,cpu/cpu-cycles,branch_type=any/ ...
> Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>