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[Xen-devel] Re: Scheduling groups, credit scheduler support

To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: [Xen-devel] Re: Scheduling groups, credit scheduler support
From: "Mike D. Day" <ncmike@xxxxxxxxxx>
Date: Fri, 14 Dec 2007 08:35:36 -0500
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On 04/12/07 23:06 +0000, Keir Fraser wrote:
> On 4/12/07 13:50, "Mike D. Day" <ncmike@xxxxxxxxxx> wrote:
> 
> >> It's good to see these patches get aired again. I hope we can get some
> >> integration with the ongoing stub domain work and get some numbers out to
> >> prove better scalability and QoS. This would ease the passage of scheduler
> >> group support into xen-unstable.
> > 
> > I previously published some benchmarks:
> > 
> > http://article.gmane.org/gmane.comp.emulators.xen.devel/39818/
> 
> Not slowing down microbenchmarks is the least we should expect for
> acceptance. The feature needs to earn its keep in the tree by demonstrating
> superior performance or scalability in a situation we care about. Like for
> HVM stub domains. :-)

Yes of course. But it also must not slow normal scheduling, which is
the point of these benchmarks. As soon as the stub domain is ready for
testing I'll start performance work on hvm domains.

Mike

-- 
Mike D. Day
IBM LTC
Cell: 919 412-3900
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