From: Jiri Olsa <jolsa@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>,
LKML <linux-kernel@vger.kernel.org>,
Stephane Eranian <eranian@google.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Paul Mackerras <paulus@samba.org>
Subject: Re: perf: odd event scheduling issue
Date: Wed, 20 May 2015 09:11:38 +0200 [thread overview]
Message-ID: <20150520071138.GD26714@krava.redhat.com> (raw)
In-Reply-To: <20150520070057.GK3644@twins.programming.kicks-ass.net>
On Wed, May 20, 2015 at 09:00:57AM +0200, Peter Zijlstra wrote:
> On Tue, May 19, 2015 at 11:07:09PM -0400, Vince Weaver wrote:
> > Hello
> >
> > so I'm running 4.1-rc4 on my Haswell machine and a lot of my perf_event
> > testsuite is failing. There seems to be weird event scheduling issues.
> >
> > I can reproduce it with plain perf; simple event groups that should work
> > fine can't be scheduled.
> >
> > vince@haswell:~$ perf stat -e \{cycles,instructions\} sleep 1
> >
>
> Hmm indeed, my ivb-ep does the same thing. Lemme go poke at that.
snb is ok
jirka
next prev parent reply other threads:[~2015-05-20 7:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 3:07 perf: odd event scheduling issue Vince Weaver
2015-05-20 7:00 ` Peter Zijlstra
2015-05-20 7:11 ` Jiri Olsa [this message]
2015-05-20 9:28 ` Peter Zijlstra
2015-05-20 13:52 ` Peter Zijlstra
2015-05-20 15:25 ` Peter Zijlstra
2015-05-20 16:08 ` Peter Zijlstra
2015-05-20 16:28 ` Peter Zijlstra
2015-05-20 23:10 ` Andi Kleen
2015-05-21 12:04 ` Stephane Eranian
2015-05-20 16:25 ` Jiri Olsa
2015-05-21 12:05 ` Stephane Eranian
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