From: Jens Axboe <axboe@suse.de>
To: Christer Weinigel <christer@weinigel.se>
Cc: Jeff Garzik <jgarzik@pobox.com>,
"Mudama, Eric" <eric_mudama@maxtor.com>,
Oleg Drokin <green@namesys.com>,
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Oliver Neukum <oliver@neukum.org>,
lkhelp@rekl.yi.org, linux-kernel@vger.kernel.org
Subject: Re: 2.5.69, IDE TCQ can't be enabled
Date: Tue, 13 May 2003 08:41:42 +0200 [thread overview]
Message-ID: <20030513064142.GM17033@suse.de> (raw)
In-Reply-To: <m33cjjzta7.fsf@zoo.weinigel.se>
On Tue, May 13 2003, Christer Weinigel wrote:
> Jens Axboe <axboe@suse.de> writes:
>
> > I don't think the multiple pending _and_ active is that big a deal, and
> > besides _everybody_ uses write back caching on IDE which makes TCQ for
> > writes very uninteresting.
>
> Isn't it recommended to turn off write back caching when doing
> software raid? It will be hard to guarantee the consistency of the
> raid set otherwise. So I think that TCQ can be very interesting for
> some loads.
And for journalled file systems, for instance. But yes generally you are
right.
--
Jens Axboe
next prev parent reply other threads:[~2003-05-13 6:29 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-12 19:19 2.5.69, IDE TCQ can't be enabled Mudama, Eric
2003-05-12 19:35 ` Jeff Garzik
2003-05-12 19:42 ` Jens Axboe
2003-05-12 19:44 ` Jens Axboe
2003-05-12 19:53 ` Jeff Garzik
2003-05-13 6:40 ` Jens Axboe
2003-05-13 18:00 ` Dave Jones
2003-05-13 18:03 ` Jens Axboe
2003-05-13 18:05 ` Jeff Garzik
2003-05-13 18:06 ` Jens Axboe
2003-05-13 18:13 ` Jens Axboe
2003-05-13 18:42 ` Jeff Garzik
2003-05-13 20:29 ` Andre Hedrick
2003-05-14 7:04 ` Jens Axboe
2003-05-14 7:15 ` Jens Axboe
2003-05-13 20:03 ` Andre Hedrick
2003-05-13 22:55 ` Alan Cox
2003-05-13 18:03 ` Jeff Garzik
2003-05-14 13:30 ` Henning P. Schmiedehausen
2003-05-12 22:36 ` Christer Weinigel
2003-05-13 6:41 ` Jens Axboe [this message]
2003-05-13 20:04 ` Bill Davidsen
-- strict thread matches above, loose matches on Subject: below --
2003-05-13 20:43 Mudama, Eric
2003-05-13 20:31 Mudama, Eric
2003-05-13 20:34 ` Andre Hedrick
2003-05-13 20:28 Mudama, Eric
2003-05-12 17:58 Mudama, Eric
2003-05-12 18:59 ` Jens Axboe
2003-05-12 19:42 ` Jeff Garzik
2003-05-10 1:38 lkhelp
2003-05-12 12:46 ` Oleg Drokin
2003-05-12 12:55 ` Oliver Neukum
2003-05-12 13:16 ` Bartlomiej Zolnierkiewicz
2003-05-12 13:12 ` Alan Cox
2003-05-13 15:39 ` Jens Axboe
2003-05-12 13:22 ` Oleg Drokin
2003-05-12 13:23 ` Jens Axboe
2003-05-12 13:35 ` Jeff Garzik
2003-05-12 13:30 ` Bartlomiej Zolnierkiewicz
2003-05-12 13:22 ` Jens Axboe
2003-05-13 15:32 ` Jens Axboe
2003-05-13 17:25 ` Oliver Neukum
2003-05-13 17:28 ` Jens Axboe
2003-05-13 18:46 ` Oliver Neukum
2003-05-13 19:06 ` Jens Axboe
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