From: Jan Kara <jack@suse.cz>
To: Tejun Heo <tj@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
axboe@kernel.dk, laijs@cn.fujitsu.com, fengguang.wu@intel.com,
linux-kernel@vger.kernel.org, jmoyer@redhat.com
Subject: Re: [PATCH 3/4] writeback: replace custom worker pool implementation with unbound workqueue
Date: Thu, 21 Mar 2013 12:32:52 +0100 [thread overview]
Message-ID: <20130321113252.GA30777@quack.suse.cz> (raw)
In-Reply-To: <20130321050718.GA8012@mtj.dyndns.org>
On Wed 20-03-13 22:07:18, Tejun Heo wrote:
> Hello, Dave.
>
> On Thu, Mar 21, 2013 at 12:57:21PM +1100, Dave Chinner wrote:
> > When you have a system that has 50+ active filesystems (pretty
> > common in the distributed storage environments were every disk has
> > it's own filesystem), knowing which filesystem(s) are getting stuck
> > in writeback from the sysrq-w or hangcheck output is pretty damn
> > important....
>
> Hmm... I guess, then, what we can do is adding a worker description
> which is printed out with task dump. ie. A work function can call
> work_set_desc(fmt, arg....). It won't be expensive and can be
> implemented relatively easily. Does that sound good enough?
Yeah, that sounds good! Thanks!
Honza
--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
next prev parent reply other threads:[~2013-03-21 11:32 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 [this message]
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
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