Re: [patch] zero-bounce block highmem I/O, #13

From: Christoph Rohland (cr@sap.com)
Date: Tue Aug 28 2001 - 07:16:11 EST


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

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