From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>, lkml <linux-kernel@vger.kernel.org>,
David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: 'perf stat --repeat N' oddity/regression
Date: Tue, 26 Jan 2016 11:18:30 -0300 [thread overview]
Message-ID: <20160126141830.GC4361@kernel.org> (raw)
In-Reply-To: <20160126080822.GA7970@gmail.com>
Em Tue, Jan 26, 2016 at 09:08:22AM +0100, Ingo Molnar escreveu:
>
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
>
> > Em Mon, Jan 25, 2016 at 04:43:33PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Mon, Jan 25, 2016 at 07:35:11PM +0100, Ingo Molnar escreveu:
> > > >
> > > > So it appears it broke somewhere between v4.0 and v4.1, as the v4.0 install
> > > > displays:
> > > >
> > > > 16,244,802,268 instructions ( +- 23.01% )
> > > >
> > > > 2.108676769 seconds time elapsed ( +- 0.86% )
> > > >
> > > >
> > > > [a few minutes later]
> > > >
> > > > Bisected it down to:
> > >
> > > Mel Gorman reported this and Jiri provided a patch that Mel tested and
> > > verified that it fixed, checking where it is sitting now...
> >
> > I already sent it your way, its:
> >
> > 198 N C 01/21 Arnaldo Carvalh (1.4K) ├─>[PATCH 06/16] perf stat: Do not clean event's private stats
> >
> > Please pull my perf-core-for-mingo tag and you should get it, its an one
> > liner.
>
> Hm, are all of those changes fixes? If not then mind splitting them into a
> perf/urgent portion as well?
Ok, doing that...
- Arnaldo
prev parent reply other threads:[~2016-01-26 14:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-20 16:31 [PATCH] perf tools: Do not show trace command if it's not compiled in Jiri Olsa
2016-01-12 11:23 ` Ingo Molnar
2016-01-12 14:29 ` Arnaldo Carvalho de Melo
2016-01-13 10:42 ` Ingo Molnar
2016-01-25 18:22 ` 'perf stat --repeat N' oddity/regression Ingo Molnar
2016-01-25 18:35 ` Ingo Molnar
2016-01-25 19:43 ` Arnaldo Carvalho de Melo
2016-01-25 19:48 ` Arnaldo Carvalho de Melo
2016-01-26 8:08 ` Ingo Molnar
2016-01-26 14:18 ` Arnaldo Carvalho de Melo [this message]
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