From: Jens Axboe <axboe@suse.de>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>,
Mike Anderson <andmike@us.ibm.com>,
Linux-Kernel <linux-kernel@vger.kernel.org>,
Linux-SCSI <linux-scsi@vger.kernel.org>
Subject: Re: [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6).
Date: Thu, 6 Nov 2003 18:58:13 +0100 [thread overview]
Message-ID: <20031106175813.GQ437@suse.de> (raw)
In-Reply-To: <20031106185511.C15403@devserv.devel.redhat.com>
On Thu, Nov 06 2003, Arjan van de Ven wrote:
>
> On Thu, Nov 06, 2003 at 06:50:32PM +0100, Jens Axboe wrote:
> > drive it is not). Now both 2.4 and 2.6 make that guarentee. The only
> > argument for disabling clustering would be for 2.4 for CPU cycle
> > reasons.
>
> yep; on 2.4 it's rather visible in the profiles during some benchmark
> test I did (like 5% of total CPU cycles)
yeah so I gather, although 5% seems extremely excessive (512-byte raw
io, on tons of disks?).
--
Jens Axboe
next prev parent reply other threads:[~2003-11-06 17:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-06 17:11 [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6) Andrew Vasquez
2003-11-06 17:14 ` Jens Axboe
2003-11-06 17:43 ` Arjan van de Ven
2003-11-06 17:50 ` Jens Axboe
2003-11-06 17:55 ` Arjan van de Ven
2003-11-06 17:58 ` Jens Axboe [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-11-06 19:33 Andrew Vasquez
2003-11-07 9:39 ` Christoph Hellwig
2003-11-06 17:45 Andrew Vasquez
2003-11-06 17:59 ` Arjan van de Ven
2003-11-07 9:37 ` Christoph Hellwig
2003-11-06 17:02 Andrew Vasquez
2003-11-06 17:53 ` Matthew Wilcox
2003-11-07 9:58 ` Christoph Hellwig
2003-11-07 9:33 ` Christoph Hellwig
2003-11-05 18:39 Andrew Vasquez
2003-11-06 9:17 ` Jens Axboe
2003-11-05 1:15 Andrew Vasquez
2003-11-05 9:17 ` Mike Anderson
2003-11-06 9:36 ` Christoph Hellwig
2003-11-06 10:51 ` Christoph Hellwig
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