Re: userspace irq balancer

[Andrea Arcangeli (andrea@suse.de)]

On Mon, May 26, 2003 at 06:59:20PM -0700, Andrew Morton wrote:
> William Lee Irwin III <wli@xxxxxxxxxxxxxx> wrote:
> >
> > In
> >  the userspace implementation the reprogramming is done infrequently
> >  enough to make even significant cost negligible; in-kernel the cost
> >  is entirely uncontrolled and the rate of reprogramming unlimited.
> 
> eh?
> 
> #define MAX_BALANCED_IRQ_INTERVAL       (5*HZ)
> #define MIN_BALANCED_IRQ_INTERVAL       (HZ/2)

Yep.

Andrea
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