From: "Alex,Shi" <alex.shi@intel.com>
To: Jeff Moyer <jmoyer@redhat.com>
Cc: Jan Kara <jack@suse.cz>, Corrado Zoccolo <czoccolo@gmail.com>,
"Li, Shaohua" <shaohua.li@intel.com>,
Vivek Goyal <vgoyal@redhat.com>, "tytso@mit.edu" <tytso@mit.edu>,
"jaxboe@fusionio.com" <jaxboe@fusionio.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Chen, Tim C" <tim.c.chen@intel.com>
Subject: Re: [performance bug] kernel building regression on 64 LCPUs machine
Date: Thu, 24 Mar 2011 14:45:39 +0800 [thread overview]
Message-ID: <1300949139.30136.1543.camel@debian> (raw)
In-Reply-To: <x49r59zrqu9.fsf@segfault.boston.devel.redhat.com>
On Wed, 2011-03-23 at 01:46 +0800, Jeff Moyer wrote:
> Jan Kara <jack@suse.cz> writes:
>
> > Jeff, I suppose the log files of fs_mark processes are on the same
> > device as the test directory, aren't they - that might explain the
> > flusher thread doing IO? The patch below
>
> No. My test environments are sane. The file system is on a completely
> separate disk and it is unmounted and remounted in between each run.
> That should take care of any lost flushes.
Jeff, why not give a try with Jan's fs_mark patch? Maybe the result show
something change. :)
>
> Did you receive my last couple of private emails commenting on the trace
> data?
>
> Cheers,
> Jeff
next prev parent reply other threads:[~2011-03-24 6:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-19 1:55 [performance bug] kernel building regression on 64 LCPUs machine Alex,Shi
2011-01-19 2:03 ` Shaohua Li
2011-01-19 12:56 ` Jan Kara
2011-01-20 7:52 ` Alex,Shi
2011-01-20 15:16 ` Vivek Goyal
2011-01-21 7:17 ` Shaohua Li
2011-01-26 8:15 ` Shaohua Li
2011-02-12 9:21 ` Alex,Shi
2011-02-12 18:25 ` Corrado Zoccolo
2011-02-14 2:25 ` Alex,Shi
2011-02-15 1:10 ` Shaohua Li
2011-02-21 16:49 ` Jan Kara
2011-02-23 8:24 ` Alex,Shi
2011-02-24 12:13 ` Jan Kara
2011-02-25 0:44 ` Alex Shi
2011-02-26 14:45 ` Corrado Zoccolo
2011-03-01 19:56 ` Jeff Moyer
2011-03-02 9:42 ` Jan Kara
2011-03-02 16:13 ` Jeff Moyer
2011-03-02 21:17 ` Jan Kara
2011-03-02 21:20 ` Jeff Moyer
2011-03-03 1:14 ` Jeff Moyer
2011-03-04 15:32 ` Jan Kara
2011-03-04 15:40 ` Jeff Moyer
2011-03-04 15:50 ` Jeff Moyer
2011-03-04 18:27 ` Jeff Moyer
2011-03-22 7:38 ` Alex,Shi
2011-03-22 16:14 ` Jan Kara
2011-03-22 17:46 ` Jeff Moyer
2011-03-24 6:45 ` Alex,Shi [this message]
2011-03-28 19:48 ` Jan Kara
2011-01-19 14:32 ` Ted Ts'o
2011-01-20 2:12 ` Shaohua Li
2011-01-21 7:23 ` Corrado Zoccolo
2011-01-21 7:47 ` Alex,Shi
2011-01-21 7:52 ` Alex,Shi
2011-01-21 8:13 ` Corrado Zoccolo
2011-01-21 8:20 ` Shaohua Li
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