From: Paolo Ornati <ornati@lycos.it>
To: Martin Josefsson <gandalf@wlug.westbo.se>
Cc: Ram Pai <linuxram@us.ibm.com>, linux-kernel@vger.kernel.org
Subject: Re: Strange IDE performance change in 2.6.1-rc1 (again)
Date: Sat, 3 Jan 2004 12:13:01 +0100 [thread overview]
Message-ID: <200401031213.01353.ornati@lycos.it> (raw)
In-Reply-To: <1073082842.824.5.camel@tux.rsn.bth.se>
On Friday 02 January 2004 23:34, you wrote:
> On Fri, 2004-01-02 at 22:32, Mike Fedyk wrote:
> > Have there been any ide updates in 2.6.1-rc1?
>
> I see that a readahead patch was applied just before -rc1 was released.
>
> found it in bk-commits-head
>
> Subject: [PATCH] readahead: multiple performance fixes
> Message-Id: <200312310120.hBV1KLZN012971@hera.kernel.org>
>
> Maybe Paolo can try backing it out.
YES, YES, YES...
Reveting "readahead: multiple performance fixes" patch performance came back
like in 2.6.0.
2.6.0:
64 31.91
128 31.89
256 26.22
8192 26.26
2.6.1-rc1 (readahead patch reverted):
64 31.84
128 31.86
256 25.93
8192 26.16
I know these are only performance in sequential data reads... and real life
is another thing... but I think the author of the patch should be informed
(Ram Pai).
for Ram Pai:
_____________________________________________________________________
My first message:
http://www.ussg.iu.edu/hypermail/linux/kernel/0401.0/0004.html
This thread:
Strange IDE performance change in 2.6.1-rc1 (again)
http://www.ussg.iu.edu/hypermail/linux/kernel/0401.0/0289.html
(look at the graph)
Any comments?
_____________________________________________________________________
Bye
--
Paolo Ornati
Linux v2.4.23
next prev parent reply other threads:[~2004-01-03 11:13 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-02 16:02 Strange IDE performance change in 2.6.1-rc1 (again) Paolo Ornati
2004-01-02 18:08 ` Ed Sweetman
2004-01-02 21:04 ` Paolo Ornati
2004-01-02 21:27 ` Valdis.Kletnieks
2004-01-03 10:20 ` Paolo Ornati
2004-01-02 21:32 ` Mike Fedyk
2004-01-02 22:34 ` Martin Josefsson
2004-01-03 11:13 ` Paolo Ornati [this message]
2004-01-03 22:40 ` Andrew Morton
2004-01-04 14:30 ` Paolo Ornati
2004-01-05 23:19 ` Ram Pai
2004-01-07 14:59 ` Paolo Ornati
2004-01-07 19:23 ` Ram Pai
2004-01-07 20:12 ` Paolo Ornati
2004-01-07 23:57 ` Andrew Morton
2004-01-08 7:31 ` Ram Pai
2004-01-09 1:05 ` Ram Pai
2004-01-09 1:17 ` Andrew Morton
2004-01-09 19:15 ` Ram Pai
2004-01-09 19:44 ` Andrew Morton
2004-01-10 14:48 ` Paolo Ornati
2004-01-10 16:00 ` Ed Sweetman
2004-01-10 16:19 ` Ed Sweetman
2004-01-10 17:29 ` Paolo Ornati
2004-01-10 17:29 ` Paolo Ornati
2004-03-29 15:45 ` Ram Pai
2004-01-04 17:15 ` Buffer and Page cache coherent? was: " Mike Fedyk
2004-01-04 22:10 ` Andrew Morton
2004-01-04 23:22 ` Mike Fedyk
2004-01-04 23:32 ` Andrew Morton
2004-01-04 23:45 ` Mike Fedyk
2004-01-05 0:23 ` Andrew Morton
2004-01-03 10:20 ` Paolo Ornati
2004-01-03 3:33 ` Tobias Diedrich
2004-01-03 4:15 ` Valdis.Kletnieks
2004-01-03 13:39 ` Tobias Diedrich
2004-01-03 20:56 ` Tobias Diedrich
2004-01-04 3:02 ` jw schultz
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