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SubjectRe: [PATCHv4 00/57] perf stat: Add scripting support
On Wed, Oct 21, 2015 at 11:03:57AM +0900, Namhyung Kim wrote:
> Hi Jiri,
>
> On Fri, Oct 16, 2015 at 12:40:35PM +0200, Jiri Olsa wrote:
> > hi,
> > sending another version of stat scripting.
> >
> > v4 changes:
> > - added attr update event for event's cpumask
> > - forbig aggregation on task workloads
> > - some minor reorders and changelog fixes
> >
> > v3 changes:
> > - added attr update event to handle unit,scale,name for event
> > it fixed the uncore_imc_1/cas_count_read/ record/report
> > - perf report -D now displays stat related events
> > - some minor and changelog fixes
> >
> > v2 changes:
> > - rebased to latest Arnaldo's perf/core
> > - patches 1 to 11 already merged in
> > - added --per-core/--per-socket/-A options for perf stat report
> > command to allow custom aggregation in stat report, please
> > check new examples below
> > - couple changelogs changes
> >
> > The initial attempt defined its own formula lang and allowed
> > triggering user's script on the end of the stat command:
> > http://marc.info/?l=linux-kernel&m=136742146322273&w=2
> >
> > This patchset abandons the idea of new formula language
> > and rather adds support to:
> > - store stat data into perf.data file
> > - add python support to process stat events
> >
> > Basically it allows to store stat data into perf.data and
> > post process it with python scripts in a similar way we
> > do for sampling data.
>
> Nice. I didn't review this patchset (yet) but I have a feature
> request. :) It'd be great if we have 'perf stat diff' to compare two
> (or more) files in some way.

yep, I plan to do stat diff

jirka


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