From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Stephane Eranian <eranian@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"mingo@elte.hu" <mingo@elte.hu>, Jiri Olsa <jolsa@redhat.com>,
Eric Dumazet <edumazet@google.com>
Subject: Re: [BUG] perf top: --stdio causes continuous refresh
Date: Thu, 6 Feb 2014 12:09:36 -0200 [thread overview]
Message-ID: <20140206140936.GC26955@infradead.org> (raw)
In-Reply-To: <20140206140705.GB26955@infradead.org>
Em Thu, Feb 06, 2014 at 12:07:05PM -0200, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Feb 06, 2014 at 02:58:01PM +0100, Stephane Eranian escreveu:
> > On Thu, Feb 6, 2014 at 2:56 PM, Arnaldo Carvalho de Melo
> > <acme@redhat.com> wrote:
> > > Em Wed, Feb 05, 2014 at 10:25:09PM +0100, Stephane Eranian escreveu:
> > >> If you run perf top on 3.14 but you force --stdio mode, perf top
> > >> goes crazy and constantly refreshes the output.
>
> > >> It does that with many older versions of the perf as well on 3.14.
> > >> It runs fine with newt mode.
>
> > >> Works fine with my 3.11 kernel. So something must be broken
> > >> with 3.14.
>
> > >> Can you reproduce the problem as well?
>
> > > Not so far, using my perf/urgent branch:
>
> > I am using tip.git. Or try 3.11, 3.10.
But my tests are on top of:
[acme@ssdandy linux]$ uname -r
3.11.4-101.fc18.x86_64
I thought it was a 3.14ish one, building one to try there...
- Arnaldo
next prev parent reply other threads:[~2014-02-06 14:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-05 21:25 [BUG] perf top: --stdio causes continuous refresh Stephane Eranian
2014-02-05 23:12 ` Stephane Eranian
2014-02-06 13:56 ` Arnaldo Carvalho de Melo
2014-02-06 13:58 ` Stephane Eranian
2014-02-06 14:07 ` Arnaldo Carvalho de Melo
2014-02-06 14:09 ` Arnaldo Carvalho de Melo [this message]
2014-02-06 15:24 ` Stephane Eranian
2014-02-06 17:48 ` David Ahern
2014-02-06 19:21 ` Arnaldo Carvalho de Melo
2014-02-06 19:28 ` Arnaldo Carvalho de Melo
2014-02-06 20:21 ` Stephane Eranian
2014-02-10 21:03 ` Arnaldo Carvalho de Melo
2014-02-11 2:15 ` Peter Hurley
2014-02-11 12:14 ` Arnaldo Carvalho de Melo
2014-02-11 12:18 ` Peter Hurley
2014-02-11 16:49 ` [PATCH] n_tty: Fix poll() when TIME_CHAR and MIN_CHAR == 0 Peter Hurley
2014-02-11 18:31 ` David Ahern
2014-02-11 18:32 ` Eric Dumazet
2014-02-11 20:50 ` Arnaldo Carvalho de Melo
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