From: Ingo Molnar <mingo@elte.hu>
To: David Ahern <dsahern@gmail.com>
Cc: mingo@redhat.com, hpa@zytor.com, paulus@samba.org,
linux-kernel@vger.kernel.org, acme@redhat.com,
fweisbec@gmail.com, peterz@infradead.org, tglx@linutronix.de,
linux-tip-commits@vger.kernel.org,
Stephane Eranian <eranian@google.com>
Subject: Re: [tip:perf/core] perf tools: Allow multiple threads or processes in record, stat, top
Date: Sat, 3 Mar 2012 08:42:02 +0100 [thread overview]
Message-ID: <20120303074202.GB16816@elte.hu> (raw)
In-Reply-To: <4F50DEA0.2020607@gmail.com>
* David Ahern <dsahern@gmail.com> wrote:
> That first cup of coffee is so important.
>
> On 3/2/12 3:56 AM, Ingo Molnar wrote:
> >phoenix:~> perf record -a sleep 1
> >[ perf record: Woken up 1 times to write data ]
> >[ perf record: Captured and wrote 0.023 MB perf.data (~988 samples) ]
> >phoenix:~> perf report --stdio
> >Warning:
> >The perf.data file has no samples!
> ># ========
> ># captured on: Fri Mar 2 12:01:41 2012
> ># hostname : phoenix
> ># os release : 3.3.0-rc5+
> ># perf version : 3.3.rc5.1698.g68a63a.dirty
> ># arch : x86_64
> ># nrcpus online : 16
> ># nrcpus avail : 16
> ># cpudesc : Quad-Core AMD Opteron(tm) Processor 8356
> ># cpuid : AuthenticAMD,16,2,3
>
> Would you mind adding this patch:
> https://lkml.org/lkml/2012/2/29/217
> and see if it fixes your problem?
That one appears to have done the trick - I committed it
yesterday, shortly after I did the testing - unknowing that it
would fix this bug as well :-)
Thanks,
Ingo
prev parent reply other threads:[~2012-03-03 7:42 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-08 16:32 [PATCH] " David Ahern
2012-02-09 1:19 ` Namhyung Kim
2012-02-09 2:52 ` David Ahern
2012-02-09 5:36 ` Namhyung Kim
2012-02-09 6:04 ` David Ahern
2012-02-09 7:37 ` Ingo Molnar
2012-02-09 14:34 ` Arnaldo Carvalho de Melo
2012-02-09 14:44 ` Arnaldo Carvalho de Melo
2012-02-10 5:42 ` Namhyung Kim
2012-02-10 14:28 ` Arnaldo Carvalho de Melo
2012-02-12 10:45 ` [PATCH] perf tools: Fix build dependency of perf python extension Namhyung Kim
2012-02-17 9:44 ` [tip:perf/core] " tip-bot for Namhyung Kim
2012-02-10 19:24 ` [PATCH] perf tools: Allow multiple threads or processes in record, stat, top Arnaldo Carvalho de Melo
2012-02-10 19:32 ` David Ahern
2012-02-10 19:34 ` Arnaldo Carvalho de Melo
2012-02-10 19:46 ` David Ahern
2012-02-10 19:58 ` Arnaldo Carvalho de Melo
2012-02-17 9:46 ` [tip:perf/core] " tip-bot for David Ahern
2012-03-02 10:56 ` Ingo Molnar
2012-03-02 14:21 ` David Ahern
2012-03-02 14:52 ` David Ahern
2012-03-03 7:42 ` Ingo Molnar [this message]
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