From: Martin Knoblauch <spamtrap@knobisoft.de>
To: Alasdair G Kergon <agk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Fengguang Wu <wfg@mail.ustc.edu.cn>,
Mike Snitzer <snitzer@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
jplatte@naasa.net, Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org,
"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
James.Bottomley@steeleye.com, Jens Axboe <jens.axboe@oracle.com>,
Milan Broz <mbroz@redhat.com>, Neil Brown <neilb@suse.de>
Subject: Re: regression: 100% io-wait with 2.6.24-rcX
Date: Wed, 23 Jan 2008 03:12:39 -0800 (PST) [thread overview]
Message-ID: <739290.84170.qm@web32614.mail.mud.yahoo.com> (raw)
----- Original Message ----
> From: Alasdair G Kergon <agk@redhat.com>
> To: Martin Knoblauch <spamtrap@knobisoft.de>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>; Mel Gorman <mel@csn.ul.ie>; Fengguang Wu <wfg@mail.ustc.edu.cn>; Mike Snitzer <snitzer@gmail.com>; Peter Zijlstra <peterz@infradead.org>; jplatte@naasa.net; Ingo Molnar <mingo@elte.hu>; linux-kernel@vger.kernel.org; "linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>; James.Bottomley@steeleye.com; Jens Axboe <jens.axboe@oracle.com>; Milan Broz <mbroz@redhat.com>; Neil Brown <neilb@suse.de>
> Sent: Wednesday, January 23, 2008 12:40:52 AM
> Subject: Re: regression: 100% io-wait with 2.6.24-rcX
>
> On Tue, Jan 22, 2008 at 07:25:15AM -0800, Martin Knoblauch wrote:
> > [root@lpsdm52 ~]# dmsetup table
> > VolGroup00-LogVol02: 0 350945280 linear 104:2 67109248
> > VolGroup00-LogVol01: 0 8388608 linear 104:2 418054528
> > VolGroup00-LogVol00: 0 67108864 linear 104:2 384
>
> The IO should pass straight through simple linear targets like
> that without needing to get broken up, so I wouldn't expect those patches to
> make any difference in this particular case.
>
Alasdair,
LVM/DM are off the hook :-) I converted one box to direct using partitions and the performance is the same disappointment as with LVM/DM. Thanks anyway for looking at my problem.
I will move the discussion now to a new thread, targetting CCISS directly.
Cheers
Martin
next reply other threads:[~2008-01-23 11:12 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-23 11:12 Martin Knoblauch [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-01-22 18:51 regression: 100% io-wait with 2.6.24-rcX Martin Knoblauch
2008-01-22 15:25 Martin Knoblauch
2008-01-22 23:40 ` Alasdair G Kergon
2008-01-19 10:24 Martin Knoblauch
2008-01-18 8:19 Martin Knoblauch
2008-01-18 16:01 ` Mel Gorman
2008-01-18 17:46 ` Linus Torvalds
2008-01-18 19:01 ` Martin Knoblauch
2008-01-18 19:23 ` Linus Torvalds
2008-01-22 14:39 ` Alasdair G Kergon
2008-01-18 20:00 ` Mike Snitzer
2008-01-18 22:47 ` Mike Snitzer
2008-01-17 21:50 Martin Knoblauch
2008-01-17 22:12 ` Mel Gorman
2008-01-17 17:51 Martin Knoblauch
2008-01-17 17:44 Martin Knoblauch
2008-01-17 20:23 ` Mel Gorman
2008-01-17 13:52 Martin Knoblauch
2008-01-17 16:11 ` Mike Snitzer
2008-01-16 14:15 Martin Knoblauch
2008-01-16 16:27 ` Mike Snitzer
2008-01-16 9:26 Martin Knoblauch
2008-01-16 12:00 ` Fengguang Wu
2008-01-16 12:00 ` Fengguang Wu
2008-01-07 10:51 Joerg Platte
2008-01-07 11:19 ` Ingo Molnar
2008-01-07 13:24 ` Joerg Platte
2008-01-07 13:32 ` Peter Zijlstra
2008-01-07 13:40 ` Joerg Platte
2008-01-09 3:27 ` Fengguang Wu
2008-01-09 3:27 ` Fengguang Wu
2008-01-09 6:13 ` Joerg Platte
2008-01-09 12:04 ` Fengguang Wu
2008-01-09 12:04 ` Fengguang Wu
2008-01-09 12:22 ` Joerg Platte
2008-01-09 12:57 ` Fengguang Wu
2008-01-09 12:57 ` Fengguang Wu
2008-01-09 13:04 ` Joerg Platte
2008-01-10 6:58 ` Fengguang Wu
2008-01-10 6:58 ` Fengguang Wu
2008-01-10 7:30 ` Fengguang Wu
2008-01-10 7:30 ` Fengguang Wu
[not found] ` <20080110073046.GA3432@mail.ustc.edu.cn>
2008-01-10 7:53 ` Fengguang Wu
2008-01-10 7:53 ` Fengguang Wu
2008-01-10 8:37 ` Joerg Platte
2008-01-10 8:43 ` Fengguang Wu
2008-01-10 8:43 ` Fengguang Wu
2008-01-10 10:03 ` Joerg Platte
2008-01-11 4:43 ` Fengguang Wu
2008-01-11 4:43 ` Fengguang Wu
2008-01-11 5:29 ` Joerg Platte
2008-01-11 6:41 ` Joerg Platte
2008-01-12 23:32 ` Joerg Platte
2008-01-13 6:44 ` Fengguang Wu
2008-01-13 6:44 ` Fengguang Wu
2008-01-13 8:05 ` Joerg Platte
2008-01-13 8:21 ` Fengguang Wu
2008-01-13 8:21 ` Fengguang Wu
2008-01-13 9:49 ` Joerg Platte
2008-01-13 11:59 ` Fengguang Wu
2008-01-13 11:59 ` Fengguang Wu
[not found] ` <20080113115933.GA11045@mail.ustc.edu.cn>
2008-01-14 3:54 ` Fengguang Wu
2008-01-14 3:54 ` Fengguang Wu
[not found] ` <20080114035439.GA7330@mail.ustc.edu.cn>
2008-01-14 9:55 ` Fengguang Wu
2008-01-14 9:55 ` Fengguang Wu
2008-01-14 11:30 ` Joerg Platte
2008-01-14 11:30 ` Joerg Platte
2008-01-14 11:41 ` Peter Zijlstra
2008-01-14 12:50 ` Fengguang Wu
2008-01-14 12:50 ` Fengguang Wu
2008-01-15 21:13 ` Mike Snitzer
2008-01-16 5:25 ` Fengguang Wu
2008-01-16 5:25 ` Fengguang Wu
2008-01-15 21:42 ` Ingo Molnar
2008-01-16 5:14 ` Fengguang Wu
2008-01-16 5:14 ` Fengguang Wu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=739290.84170.qm@web32614.mail.mud.yahoo.com \
--to=spamtrap@knobisoft.de \
--cc=James.Bottomley@steeleye.com \
--cc=agk@redhat.com \
--cc=jens.axboe@oracle.com \
--cc=jplatte@naasa.net \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mbroz@redhat.com \
--cc=mel@csn.ul.ie \
--cc=mingo@elte.hu \
--cc=neilb@suse.de \
--cc=peterz@infradead.org \
--cc=snitzer@gmail.com \
--cc=torvalds@linux-foundation.org \
--cc=wfg@mail.ustc.edu.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.