On Tue, Feb 20, 2007 at 05:23:21PM -0500, Jeff Garzik wrote:
> >introducing SATA ACPI does not work for me (I've filled the bug
> >report: http://bugzilla.kernel.org/show_bug.cgi?id=8046) beside those error
> >messages, IDE performance is decreased. libata.noacpi=1 option works ok but
> >the performance is still slightly degraded (about 10%).
>
> Does performance come back if you also use acpi=off ?
It does not.
With 2.6.20-git15, hdparm -t /dev/sda says 28MB/s,
with 2.6.20, hdparm -t /dev/sda says 32MB/s.
--
Lukáš Hejtmánek
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