From: Christoph Hellwig <hch@infradead.org>
To: Jeff Layton <jlayton@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>,
Jeff Moyer <jmoyer@redhat.com>,
"Vitaly V. Bursov" <vitalyb@telenet.dn.ua>,
linux-kernel@vger.kernel.org, bfields@fieldses.org
Subject: Re: Slow file transfer speeds with CFQ IO scheduler in some cases
Date: Wed, 12 Nov 2008 07:54:29 -0500 [thread overview]
Message-ID: <20081112125429.GA12463@infradead.org> (raw)
In-Reply-To: <20081112074503.47e175ae@tleilax.poochiereds.net>
On Wed, Nov 12, 2008 at 07:45:03AM -0500, Jeff Layton wrote:
> Ahh Good point...I wasn't thinking about it the right way. I guess what
> we really need is some way to tell that a series of I/O requests
> originated from the same client thread. NFS isn't really conducive to
> this...
>
> We might be able to do something like that with NFSv4 though. Maybe an
> io_context per state owner or something. That's probably not going to
> be trivial to implement however...
Talk to Greg Banks, he's been thinking about and working on an open
files cache for quite a while already.
next prev parent reply other threads:[~2008-11-12 12:54 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-09 18:04 Vitaly V. Bursov
2008-11-09 18:30 ` Alexey Dobriyan
2008-11-09 18:32 ` Vitaly V. Bursov
2008-11-10 10:44 ` Jens Axboe
2008-11-10 13:51 ` Jeff Moyer
2008-11-10 13:56 ` Jens Axboe
2008-11-10 17:16 ` Vitaly V. Bursov
2008-11-10 17:35 ` Jens Axboe
2008-11-10 18:27 ` Vitaly V. Bursov
2008-11-10 18:29 ` Jens Axboe
2008-11-10 18:39 ` Jeff Moyer
2008-11-10 18:42 ` Jens Axboe
2008-11-10 21:51 ` Jeff Moyer
2008-11-11 9:34 ` Jens Axboe
2008-11-11 9:35 ` Jens Axboe
2008-11-11 11:52 ` Jens Axboe
2008-11-11 16:48 ` Jeff Moyer
2008-11-11 18:08 ` Jens Axboe
2008-11-11 16:53 ` Vitaly V. Bursov
2008-11-11 18:06 ` Jens Axboe
2008-11-11 19:36 ` Jeff Moyer
2008-11-11 21:41 ` Jeff Layton
2008-11-11 21:59 ` Jeff Layton
2008-11-12 12:20 ` Jens Axboe
2008-11-12 12:45 ` Jeff Layton
2008-11-12 12:54 ` Christoph Hellwig [this message]
2008-11-11 19:42 ` Vitaly V. Bursov
2008-11-12 18:32 ` Jeff Moyer
2008-11-12 19:02 ` Jens Axboe
2008-11-13 8:51 ` Wu Fengguang
2008-11-13 8:54 ` Jens Axboe
2008-11-14 1:36 ` Wu Fengguang
2008-11-25 11:02 ` Vladislav Bolkhovitin
2008-11-25 11:25 ` Wu Fengguang
2008-11-25 15:21 ` Jeff Moyer
2008-11-25 16:17 ` Vladislav Bolkhovitin
2008-11-13 18:46 ` Vitaly V. Bursov
2008-11-25 10:59 ` Vladislav Bolkhovitin
2008-11-25 11:30 ` Wu Fengguang
2008-11-25 11:41 ` Vladislav Bolkhovitin
2008-11-25 11:49 ` Wu Fengguang
2008-11-25 12:03 ` Vladislav Bolkhovitin
2008-11-25 12:09 ` Vladislav Bolkhovitin
2008-11-25 12:15 ` Wu Fengguang
2008-11-27 17:46 ` Vladislav Bolkhovitin
2008-11-28 0:48 ` Wu Fengguang
2009-02-12 18:35 ` Vladislav Bolkhovitin
2009-02-13 1:57 ` Wu Fengguang
2009-02-13 20:08 ` Vladislav Bolkhovitin
2009-02-16 2:34 ` Wu Fengguang
2009-02-17 19:03 ` Vladislav Bolkhovitin
2009-02-18 18:14 ` Vladislav Bolkhovitin
2009-02-19 1:35 ` Wu Fengguang
2009-02-17 19:01 ` Vladislav Bolkhovitin
2009-02-19 2:05 ` Wu Fengguang
2009-03-19 17:44 ` Vladislav Bolkhovitin
2009-03-20 8:53 ` Vladislav Bolkhovitin
2009-03-23 1:42 ` Wu Fengguang
2009-04-21 18:18 ` Vladislav Bolkhovitin
2009-04-24 8:43 ` Wu Fengguang
2009-05-12 18:13 ` Vladislav Bolkhovitin
2009-02-17 19:01 ` Vladislav Bolkhovitin
2009-02-19 1:38 ` Wu Fengguang
2008-11-24 15:33 ` Jeff Moyer
2008-11-24 18:13 ` Jens Axboe
2008-11-24 18:50 ` Jeff Moyer
2008-11-24 18:51 ` Jens Axboe
2008-11-13 6:54 ` Vitaly V. Bursov
2008-11-13 14:32 ` Jeff Moyer
2008-11-13 18:33 ` Vitaly V. Bursov
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