Re: [RFC PATCH] perf/core: exposing type of context-switch-out event

[Milian Wolff]

On Donnerstag, 1. März 2018 19:08:05 CET Andi Kleen wrote:
> On Thu, Mar 01, 2018 at 06:40:04PM +0300, Alexey Budankov wrote:
> > Hi,
> > 
> > This patch prototypes exposing the type of context-switch-out event using
> > PERF_RECORD_MISC_EXT_RESERVED bit for PERF_RECORD_SWITCH[_CPU_WIDE]
> > records.
> It would be better to define an actually named bit in perf_event.h.
> It can be the same value.
> 
> Also we would need a patch for perf script / perf report -D to print this
> information.
> 
> The rest looks good to me.

Please also add documentation Documentation/perf.data-file-format.txt, but I 
just noticed that not even PERF_RECORD_SWITCH is documented there...

Otherwise I also think that this would be a very nice feature addition!

-- 
Milian Wolff | milian.wolff@xxxxxxxx | Senior Software Engineer
KDAB (Deutschland) GmbH, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt, C++ and OpenGL Experts

Attachment: smime.p7s
Description: S/MIME cryptographic signature