Re: [Xen-devel] File System Performance - 10x slower

Nauzad Sadry
2005-01-15T23:24:12Z

Hello folks

On turning DMA on in XEN kernel I managed to achieve file i/o
performance comparable to baseline

Thanks for your help

Nauzad


On Tue, 11 Jan 2005 23:15:55 +0100, Jan Kundrát <jan.kundrat@fzu.cz>
wrote:
> Nauzad Sadry wrote:
> > On using hdparm is found out that DMA is disabled by default in Xen
> > (it was enabled on baseline) & I probably need to rebulid the
kernel
> > with this option turned on.
> >
> > If there are any other ways to turn on this option, please let me know
>
> as Ian already said, you''ll have to include your IDE
chipset''s driver
> into kernel. It is located under Device drivers->ATA/ATAPI/MFM/RLL
support.
>
> -jkt
>
> --
> cd /local/pub && more beer > /dev/mouth