* perf: documentation for cycles_no_execute event
@ 2017-12-29 10:58 Julia Lawall
2018-01-08 14:00 ` Jiri Olsa
0 siblings, 1 reply; 4+ messages in thread
From: Julia Lawall @ 2017-12-29 10:58 UTC (permalink / raw)
To: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Alexander Shishkin, Jiri Olsa, Namhyung Kim, linux-kernel
Hello,
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?
thanks,
julia
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: perf: documentation for cycles_no_execute event
2017-12-29 10:58 perf: documentation for cycles_no_execute event Julia Lawall
@ 2018-01-08 14:00 ` Jiri Olsa
2018-01-08 21:10 ` Andi Kleen
0 siblings, 1 reply; 4+ messages in thread
From: Jiri Olsa @ 2018-01-08 14:00 UTC (permalink / raw)
To: Julia Lawall
Cc: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Alexander Shishkin, Namhyung Kim, linux-kernel, Andi Kleen
On Fri, Dec 29, 2017 at 11:58:42AM +0100, Julia Lawall wrote:
> Hello,
hi,
adding Andi in cc, he should be able to answer this
thanks,
jirka
>
> 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?
>
> thanks,
> julia
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: perf: documentation for cycles_no_execute event
2018-01-08 14:00 ` Jiri Olsa
@ 2018-01-08 21:10 ` Andi Kleen
2018-01-08 21:18 ` Julia Lawall
0 siblings, 1 reply; 4+ messages in thread
From: Andi Kleen @ 2018-01-08 21:10 UTC (permalink / raw)
To: Jiri Olsa
Cc: Julia Lawall, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Alexander Shishkin, Namhyung Kim,
linux-kernel, Andi Kleen
> > 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.
-Andi
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: perf: documentation for cycles_no_execute event
2018-01-08 21:10 ` Andi Kleen
@ 2018-01-08 21:18 ` Julia Lawall
0 siblings, 0 replies; 4+ messages in thread
From: Julia Lawall @ 2018-01-08 21:18 UTC (permalink / raw)
To: Andi Kleen
Cc: Jiri Olsa, Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Alexander Shishkin, Namhyung Kim, linux-kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-12-29 10:58 perf: documentation for cycles_no_execute event Julia Lawall
2018-01-08 14:00 ` Jiri Olsa
2018-01-08 21:10 ` Andi Kleen
2018-01-08 21:18 ` Julia Lawall
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