From: Joel Becker <Joel.Becker@oracle.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 2/2] Thread recovery
Date: Wed, 1 Dec 2010 21:30:55 -0800 [thread overview]
Message-ID: <20101202053055.GH16604@mail.oracle.com> (raw)
In-Reply-To: <4CF72B01.4000500@oracle.com>
On Wed, Dec 01, 2010 at 09:13:37PM -0800, Sunil Mushran wrote:
> One problem I see is that we may spawn too many threads. Imagine
> a setup with 50 mounts and 16 nodes. Not uncommon at all. If 5 nodes
> die, that's 300 threads, 50 of which will be coordinating threads.
>
> One solution is to have a universal mount count and use that and the
> number of cpus to come up with a per-mount parallel reco count.
>
> Thoughts, anyone?
The new concurrency workqueues should allow us a
limited-threadcount pool of threads to do this. We should be using them
rather than implementing thread management ourselves.
Joel
--
"Three o'clock is always too late or too early for anything you
want to do."
- Jean-Paul Sartre
Joel Becker
Senior Development Manager
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127
next prev parent reply other threads:[~2010-12-02 5:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-17 15:50 [Ocfs2-devel] [PATCH 2/2] Thread recovery Goldwyn Rodrigues
2010-12-02 5:13 ` Sunil Mushran
2010-12-02 5:30 ` Joel Becker [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-11-16 22:59 Goldwyn Rodrigues
2010-11-12 1:01 Goldwyn Rodrigues
2010-11-12 2:24 ` Wengang Wang
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