From: Tejun Heo <tj@kernel.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: laijs@cn.fujitsu.com, fengguang.wu@intel.com,
linux-kernel@vger.kernel.org, jmoyer@redhat.com,
Jan Kara <jack@suse.cz>
Subject: Re: [PATCHSET] writeback: convert writeback to unbound workqueue
Date: Tue, 12 Mar 2013 10:10:37 -0700 [thread overview]
Message-ID: <20130312171037.GO24522@htj.dyndns.org> (raw)
In-Reply-To: <20130312150633.GZ25165@kernel.dk>
Hey, Jens.
On Tue, Mar 12, 2013 at 04:06:33PM +0100, Jens Axboe wrote:
> > git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git review-writeback-conversion
>
> I like it, diffstat looks nice too :-)
>
> Have you done any performance testing, or just functional verification?
Only functional test at this point. I'm buliding NUMA awareness to
workqueue and planning on doing comparison of before-wq, after-wq,
after-wq-with-NUMA-awareness. I don't expect any tangible difference
between before-wq and after-wq tho. It would be great if someone can
recommend me a test scenario which can emphasize CPU overhead of
writeback tasks. Any ideas?
Thanks.
--
tejun
prev parent reply other threads:[~2013-03-12 17:10 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-07 21:44 [PATCHSET] writeback: convert writeback to unbound workqueue Tejun Heo
2013-03-07 21:44 ` [PATCH 1/4] implement current_is_workqueue_rescuer() Tejun Heo
2013-03-13 0:42 ` Tejun Heo
2013-03-07 21:44 ` [PATCH 2/4] writeback: remove unused bdi_pending_list Tejun Heo
2013-03-12 12:02 ` Jan Kara
2013-03-07 21:44 ` [PATCH 3/4] writeback: replace custom worker pool implementation with unbound workqueue Tejun Heo
2013-03-12 15:05 ` Jan Kara
2013-03-18 22:32 ` Jan Kara
2013-03-18 22:35 ` Tejun Heo
2013-03-19 15:46 ` Jan Kara
2013-03-19 17:28 ` Tejun Heo
2013-03-21 1:57 ` Dave Chinner
2013-03-21 5:07 ` Tejun Heo
2013-03-21 11:32 ` Jan Kara
2013-03-21 13:08 ` Christoph Hellwig
2013-03-21 18:37 ` Tejun Heo
2013-03-07 21:44 ` [PATCH 4/4] writeback: expose the bdi_wq workqueue Tejun Heo
2013-03-12 15:06 ` [PATCHSET] writeback: convert writeback to unbound workqueue Jens Axboe
2013-03-12 17:10 ` Tejun Heo [this message]
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