Re: [git patches] IDE update

Bartlomiej Zolnierkiewicz
2005-07-04T15:43:13Z

On 7/4/05, Al Boldi <a1426z@gawab.com> wrote:
> Bartlomiej Zolnierkiewicz wrote: {
> What is the "int/dma problem"?
> }
>
> Hdparm -tT gives 38mb/s in 2.4.31
> Cat /dev/hda > /dev/null gives 2% user 33% sys 65% idle
>
> Hdparm -tT gives 28mb/s in 2.6.12
> Cat /dev/hda > /dev/null gives 2% user 25% sys 0% idle 73% IOWAIT
>
> It feels like DMA is not being applied properly in 2.6.12.
>
> Your comments please.

Are earlier 2.6.x kernels okay?

dmesg output?

Bartlomiej