Re: [PATCH 0/4] perf stat: Enable group read of counters

From: Arnaldo Carvalho de Melo
Date: Fri Jul 21 2017 - 13:08:03 EST


Em Fri, Jul 21, 2017 at 02:12:08PM +0200, Jiri Olsa escreveu:
> hi,
> sending changes to enable group read of perf counters
> for perf stat command. It allows us to read whole group
> of counters within single read syscall.
>
> Also available in here:
> git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
> perf/stat_group
>
> Not sure why we haven't supported yet, but anyway it was
> unavailable for some time due to a bug which was fixed
> just recently via:
> ba5213ae6b88 ("perf/core: Correct event creation with PERF_FORMAT_GROUP")

Thanks, applied.

- Arnaldo