Re: 2.6.20-rc2+: CFQ halving disk throughput.

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Rene Herman wrote:

In fact, it's CFQ. The PATA thing was a red herring. 2.6.20-rc2 and 3 give me ~ 24 MB/s from "hdparm t /dev/hda" while 2.6.20-rc1 and below give me ~ 50 MB/s.

Jens: this is due to "[PATCH] cfq-iosched: tighten allow merge criteria", 719d34027e1a186e46a3952e8a24bf91ecc33837:

[email protected] bounces for me. Could one of the other recipients of parent message try to forward?

Rene.
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