From: Arnaldo Carvalho de Melo <acme@infradead.org>
To: Kirill Smelkov <kirr@mns.spb.ru>
Cc: linux-kernel@vger.kernel.org,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@elte.hu>, Mike Galbraith <efault@gmx.de>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
Tom Zanussi <tzanussi@gmail.com>
Subject: Re: Q: perf log mode?
Date: Wed, 12 Jan 2011 15:07:17 -0200 [thread overview]
Message-ID: <20110112170716.GB24598@ghostprotocols.net> (raw)
In-Reply-To: <20110112163131.GA2924@tugrik.mns.mnsspb.ru>
Em Wed, Jan 12, 2011 at 07:31:32PM +0300, Kirill Smelkov escreveu:
> As I wrote in my first mail, maybe a bit not explicitly (sorry then), the
> latency is introduced in perf-record. I'm telling this because I've
Ok, all is well and we'll tune the kernel to do it as we need using your
patch.
> visually monitored perf-record output to console (yes, binary output,
> but it does not matter) to see whether there is output progress at all.
>
> After initial startup there was no progress for long time and then bunch
> of data after 30-40 seconds.
>
>
> And with the patch posted inline within reply-to-Peter mail, the delay
> goes away, so could you please consider applying it?
I will.
next prev parent reply other threads:[~2011-01-12 17:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-12 14:06 Q: perf log mode? Kirill Smelkov
2011-01-12 14:08 ` Peter Zijlstra
2011-01-12 14:42 ` Frederic Weisbecker
2011-01-12 14:53 ` Peter Zijlstra
2011-01-12 15:10 ` Frederic Weisbecker
2011-01-12 14:59 ` Kirill Smelkov
2011-01-12 15:02 ` Peter Zijlstra
2011-01-12 16:30 ` Arnaldo Carvalho de Melo
2011-01-13 8:26 ` Kirill Smelkov
2011-01-12 15:21 ` Arnaldo Carvalho de Melo
2011-01-12 16:31 ` Kirill Smelkov
2011-01-12 17:07 ` Arnaldo Carvalho de Melo [this message]
2011-01-14 7:25 ` [tip:perf/urgent] perf record: Add "nodelay" mode, disabled by default tip-bot for Kirill Smelkov
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