Re: 4BSD process starvation during I/O

From: Kris Kennaway <kris_at_obsecurity.org>
Date: Wed, 23 Nov 2005 19:40:50 -0500
On Thu, Nov 24, 2005 at 08:35:03AM +0800, David Xu wrote:
> Kris Kennaway wrote:
> 
> >On Thu, Nov 24, 2005 at 07:52:30AM +0800, David Xu wrote:
> > 
> >
> >>Kris Kennaway wrote:
> >>
> >>   
> >>
> >>>Perhaps this can be tweaked.
> >>>
> >>>Kris
> >>>
> >>>P.S. Please, no responses about how maybe someone could write a new
> >>>scheduler that doesn't have this property.
> >>>
> >>>
> >>>
> >>>
> >>>     
> >>>
> >>Can you try it again with FULL_PREEMPTION is turned on ?
> >>   
> >>
> >
> >Didn't really make a difference:
> >
> > 
> >
> This might only can be fixed when msleep no longer explicitly fiddles
> thread priority, let scheduler fully control it.

OK, thanks for looking at it.

Kris

Received on Wed Nov 23 2005 - 23:40:51 UTC

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