Re: 2.2.15pre5, IDE and Athlon problem(s)

From: Rik van Riel (riel@nl.linux.org)
Date: Sat Feb 05 2000 - 20:12:16 EST


On Sat, 5 Feb 2000, Gabriele Turchi wrote:

> One test which freeze almost completely the system is:
>
> dd if=/dev/zero of=/home/1 bs=1024k &

> Is a vm-subsystem problem (too many cache allocated)? Is a IDE
> subsystem problem (too large queues, especially in writing)?

It's probably a problem with the elevator sorting in
ll_rw_blk. I'm thinking this because the exact same
test doesn't give any performance hit at all on my
SCSI system...

Andrea Arcangeli is working on a patch to solve this
problem. If it's ready in time it will be in 2.2.16.

regards,

Rik

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