From: "J.A. Magallon" <jamagallon@able.es>
To: Andrew Morton <akpm@digeo.com>
Cc: Lista Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCHSET] Linux 2.4.20-jam0
Date: Sat, 30 Nov 2002 15:45:41 +0100 [thread overview]
Message-ID: <20021130144541.GA2517@werewolf.able.es> (raw)
In-Reply-To: <3DE80AB6.611F3A8C@digeo.com>; from akpm@digeo.com on Sat, Nov 30, 2002 at 01:47:50 +0100
On 2002.11.30 Andrew Morton wrote:
>"J.A. Magallon" wrote:
>>
>> - Orlov inode allocator for 2.4
>
>The Orlov allocator in 2.5 has caused a tremendous performance regression
>in dbench-on-ext3/ordered-on-scsi.
>
>I don't know why yet - I doubt if it's due to the allocator itself - more
>likely an IO scheduling bug in ext3, or a bug in the 2.5 elevator.
>
>There is no such regression on IDE - presumably write caching is covering
>up the problem.
>
Is there any way I can test that ? I have all scsi drives and can
for example remount with 'orlov' or 'oldalloc'...
>So that's something to watch out for.
>
>(where did your Orlov patch from? All the tabs are mangled)
>
See the other answer to previous message...
>You'll need to port this missing bit, which provides the `oldalloc'
>and `orlov' mount options.
>
Thanks, I will add it...
BTW, who puts names to options ? Wouldn't be more intuitive to add options
like 'ialloc_std' or 'ialloc_orlov' ? Too late to change this ?
TIA
--
J.A. Magallon <jamagallon@able.es> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.1 (Cooker) for i586
Linux 2.4.20-jam0 (gcc 3.2 (Mandrake Linux 9.1 3.2-4mdk))
next prev parent reply other threads:[~2002-11-30 14:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-29 23:38 [PATCHSET] Linux 2.4.20-jam0 J.A. Magallon
2002-11-30 0:47 ` Andrew Morton
2002-11-30 14:45 ` J.A. Magallon [this message]
2002-11-30 14:58 ` Sean Neakums
2002-11-30 15:02 ` J.A. Magallon
2002-11-30 22:15 ` Andrew Morton
2002-11-30 6:36 ` hugang
2002-11-30 14:58 ` J.A. Magallon
2002-11-30 17:07 ` Mike Galbraith
2002-11-30 17:50 ` Andrea Arcangeli
2002-11-30 23:36 ` J.A. Magallon
2002-12-01 1:55 ` J.A. Magallon
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