Date: Thu, 24 Nov 2005 08:35:03 +0800 From: David Xu <davidxu@freebsd.org> To: Kris Kennaway <kris@obsecurity.org> Cc: current@FreeBSD.org Subject: Re: 4BSD process starvation during I/O Message-ID: <43850AB7.4000109@freebsd.org> In-Reply-To: <20051124000824.GA11032@xor.obsecurity.org> References: <20051123201837.GA4822@xor.obsecurity.org> <438500BE.3020507@freebsd.org> <20051124000824.GA11032@xor.obsecurity.org>
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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.
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