From: Jens Axboe <axboe@suse.de>
To: Kenneth Chen <kenneth.w.chen@intel.com>,
"'Andrew Morton'" <akpm@osdl.org>,
linux-kernel@vger.kernel.org, thornber@redhat.com
Subject: Re: [PATCH] backing dev unplugging
Date: Wed, 10 Mar 2004 21:49:37 +0100 [thread overview]
Message-ID: <20040310204936.GJ15087@suse.de> (raw)
In-Reply-To: <20040310204532.GA10281@sgi.com>
On Wed, Mar 10 2004, Jesse Barnes wrote:
> On Wed, Mar 10, 2004 at 09:20:25PM +0100, Jens Axboe wrote:
> > It'll be hard to apply the patch against anything but -mm, since it
> > builds (or at least will conflict with) other changes in there. I
> > deliberately made a -mm version this time though I usually make -linus
> > and adapt if necessary, for Andrew to get some testing on this.
>
> I tried applying to a BK tree (that was fresh as of a couple of hours
> ago), and ignored the dm related changes, and it seemed to work ok after
> I fixed up rejects in direct-io.c and blkdev.h (which didn't seem hard,
> unless I'm missing something):
>
> 10 qla2200 fc controllers, 64 cpus, 112 disks
>
> stock BK tree: ~43945 I/Os per second
> w/Jens' patch: ~47149 I/Os per second
Do you have a profile for both runs (what was the work load, btw)?
--
Jens Axboe
next prev parent reply other threads:[~2004-03-10 20:49 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-10 12:45 [PATCH] backing dev unplugging Jens Axboe
2004-03-10 19:55 ` Andrew Morton
2004-03-10 20:03 ` Kenneth Chen
2004-03-10 20:20 ` Jens Axboe
2004-03-10 20:45 ` Jesse Barnes
2004-03-10 20:49 ` Jens Axboe [this message]
[not found] ` <20040310205237.GK15087@suse.de>
2004-03-10 21:01 ` Jesse Barnes
2004-03-10 21:02 ` Jens Axboe
2004-03-10 21:35 ` Jesse Barnes
2004-03-10 23:54 ` Andrew Morton
2004-03-11 0:03 ` David Mosberger
2004-03-11 6:30 ` Jesse Barnes
2004-03-10 20:17 ` Jens Axboe
2004-03-15 5:53 ` Kenneth Chen
2004-03-10 20:14 ` Jeff Garzik
2004-03-10 20:19 ` Jens Axboe
2004-03-10 21:00 ` Andrew Morton
2004-03-10 21:02 ` Jens Axboe
2004-03-10 21:40 ` Miquel van Smoorenburg
2004-03-10 23:05 ` Andrew Morton
2004-03-11 0:05 ` Miquel van Smoorenburg
2004-03-11 0:17 ` Andrew Morton
2004-03-11 6:43 ` Jens Axboe
2004-03-10 22:22 ` Nathan Scott
2004-03-10 23:32 ` Steve Lord
2004-03-11 7:05 ` Jens Axboe
2004-03-11 9:14 ` Joe Thornber
2004-03-11 9:16 ` Jens Axboe
2004-03-11 12:17 ` Christophe Saout
2004-03-11 12:22 ` Jens Axboe
2004-03-11 13:11 ` Christophe Saout
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