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

Linus Torvalds
2007-01-01T23:31:07Z

On Mon, 1 Jan 2007, Rene Herman wrote:

> 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:
>
> axboe@oracle.com bounces for me. Could one of the other recipients of parent
> message try to forward?

It should be "Jens Axboe <jens.axboe@oracle.com>".

Jens was away over the holidays, hopefully he'll be back today or
tomorrow.

Linus