From: Christoph Hellwig <hch@infradead.org>
To: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: linux-kernel@vger.kernel.org, "'Andrew Morton'" <akpm@osdl.org>,
"'Jens Axboe'" <axboe@suse.de>
Subject: Re: Direct io on block device has performance regression on 2.6.x kernel - fix sync I/O path
Date: Wed, 9 Mar 2005 02:20:02 +0000 [thread overview]
Message-ID: <20050309022002.GA23577@infradead.org> (raw)
In-Reply-To: <200503090145.j291j7g16386@unix-os.sc.intel.com>
> --- linux-2.6.9/drivers/char/raw.c 2004-10-18 14:54:37.000000000 -0700
> +++ linux-2.6.9.ken/drivers/char/raw.c 2005-03-08 17:22:07.000000000 -0800
this is not the blockdevice, but the obsolete raw device driver. Please
benchmark and if nessecary fix the blockdevice O_DIRECT codepath insted
as the raw driver is slowly going away.
next prev parent reply other threads:[~2005-03-09 2:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-09 1:45 Direct io on block device has performance regression on 2.6.x kernel - fix sync I/O path Chen, Kenneth W
2005-03-09 2:20 ` Christoph Hellwig [this message]
2005-03-09 2:54 ` Chen, Kenneth W
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