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SubjectRe: Priority Inversion in Scheduling
On Wed, Sep 10, 2003 at 06:42:10AM +0200, Mike Galbraith wrote:
> At 02:23 AM 9/10/2003, Nick Piggin wrote:
> >Hi John,
> >Your mechanism is basically "backboost". Its how you get X to keep a
> >high piroirity, but quite unpredictable. Giving a boost to a process
> >holding a semaphore is an interesting idea, but it doesn't address the
> >X problem.
>
> FWIW, I tried the hardware usage bonus thing, and it does cure the X
> inversion problem (yeah, it's a pretty cheezy way to do it). It also
> cures xmms skips if you can't get to the top without hw usage. I also
> tried a cpu limited backboost from/to tasks associated with hardware, and
> it hasn't run amok... yet ;-)

Against which scheduler, and when are you going to post the patch?
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