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 11:56:27 -0200 [thread overview]
Message-ID: <20140206135627.GA26955@infradead.org> (raw)
In-Reply-To: <CABPqkBSkSbWvdRu3iEtNvHhfV4J4sALHvdd40hZTcGxLe576yQ@mail.gmail.com>
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:
[root@ssdandy ~]# perf --version
perf version 3.13.g1da187
Also it honours --delay, i.e.
# perf top --delay 5 --stdio
it will wait 5 seconds between refreshes, etc.
Checking out v3.14-rc1 now.
- Arnaldo
next prev parent reply other threads:[~2014-02-06 13:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-05 21:25 Stephane Eranian
2014-02-05 23:12 ` Stephane Eranian
2014-02-06 13:56 ` Arnaldo Carvalho de Melo [this message]
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
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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