From: William Lee Irwin III <wli@holomorphy.com>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@digeo.com>
Subject: Re: 2.5.66-mm3 - bad ext2 performance ?
Date: Tue, 15 Apr 2003 14:06:24 -0700 [thread overview]
Message-ID: <20030415210624.GH706@holomorphy.com> (raw)
In-Reply-To: <200304151356.24323.pbadari@us.ibm.com>
On Tue, Apr 15, 2003 at 02:00:05PM -0700, Badari Pulavarty wrote:
> This is kind of extreem. But I have 1070 LUNS and I mkfs/mounted (ext2) all
> these and running "fsx" on all of them.
> I see very bad IO rate on the machine. fsx with O_DIRECT seems to be
> doing okay. Any ideas on why regular filesystem (buffered) IO sucks ?
> I dont' see even cache increasing ..
Can we get a "before" profile on the same machine to compare against?
-- wli
next prev parent reply other threads:[~2003-04-15 20:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-15 21:00 Badari Pulavarty
2003-04-15 21:06 ` William Lee Irwin III [this message]
2003-04-15 21:24 ` Andreas Dilger
2003-04-15 23:17 ` Badari Pulavarty
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