From: Christoph Rohland <cr@sap.com>
To: Jens Axboe <axboe@suse.de>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
"David S. Miller" <davem@redhat.com>
Subject: Re: [patch] zero-bounce block highmem I/O, #13
Date: 28 Aug 2001 14:16:11 +0200 [thread overview]
Message-ID: <m3ae0k5qic.fsf@linux.local> (raw)
In-Reply-To: <20010827123700.B1092@suse.de> <m3itf85vlr.fsf@linux.local> <20010828125520.L642@suse.de> <20010828134141.M642@suse.de>
In-Reply-To: <20010828134141.M642@suse.de>
Hi Jens,
On Tue, 28 Aug 2001, Jens Axboe wrote:
> Ok found the bug -- SCSI was accidentally using blk_seg_merge_ok
> when it just wanted to test if we were crossing a 4GB physical
> address boundary or not. Doh! Attached incremental patch should fix
> the SCSI performance issue. I'm testing right now...
Yup, performance is back to 2.4.9 level. But I do not see an
improvement.
I will now do a database import.
Greetings
Christoph
next prev parent reply other threads:[~2001-08-28 12:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-27 10:37 [patch] zero-bounce block highmem I/O, #13 Jens Axboe
2001-08-28 10:26 ` Christoph Rohland
2001-08-28 10:41 ` Jens Axboe
2001-08-28 10:55 ` Jens Axboe
2001-08-28 11:41 ` Jens Axboe
2001-08-28 12:16 ` Christoph Rohland [this message]
2001-08-28 12:43 ` Jens Axboe
2001-08-28 15:59 ` Christoph Rohland
[not found] ` <m3elpw5smc.fsf@linux.local>
2001-08-28 11:45 ` Jens Axboe
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