Re: perf: documentation for cycles_no_execute event

From: Julia Lawall
Date: Mon Jan 08 2018 - 16:18:14 EST




On Mon, 8 Jan 2018, Andi Kleen wrote:

> > > Many of the x86 pipeline.json files have the brief description "Total
> > > execution stalls" for both CYCLE_ACTIVITY.CYCLES_NO_EXECUTE and
> > > CYCLE_ACTIVITY.STALLS_TOTAL. Should the case for
> > > CYCLE_ACTIVITY.CYCLES_NO_EXECUTE have a brief description that mentions
> > > cycles? Some of the files do have a public description that mentions
> > > cycles, eg broadwellde/pipeline.json has "Counts number of cycles nothing
> > > is executed on any execution port.", but others (eg ivytown/pipeline.json)
> > > just have "Total execution stalls." twice. Maybe "Cycles where nothing is
> > > executed" would be ok for CYCLE_ACTIVITY.CYCLES_NO_EXECUTE?
>
> Yes it's all in cycles
>
> Will clarify in a future event list update.

Thanks.

julia