Re: ide-cs using 100% CPU

From: Alan Cox
Date: Sat Aug 07 2004 - 18:32:10 EST


On Gwe, 2004-08-06 at 20:33, Hamie wrote:
> Is 100% CPU not excessive? IIRC my PIII-750 used to use less CPU doing
> the same job as quick, or even slightly faster...

PCMCIA IDE is PIO only so it burns CPU. This is one case where
hyperthreading is nice. Cardbus IDE is a lot better but very little
exists and we don't currently support hotplug IDE controllers.

> And should it not use system CPU rather than user CPU?

Yes - but figure out please if the kernel or userspace is getting that
wrong ;)

Alan

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