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RE: [Xen-devel] RE: [Patch] Fix IDLE issue with sedf scheduler on IA64

To: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>, "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>, "Hollis Blanchard" <hollisb@xxxxxxxxxx>
Subject: RE: [Xen-devel] RE: [Patch] Fix IDLE issue with sedf scheduler on IA64
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Thu, 14 Jul 2005 19:33:02 +0800
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-devel] RE: [Patch] Fix IDLE issue with sedf scheduler on IA64
>> I'm still doubt the really gain of "not switch to idle",
>> which may bring dom0 less period on real job compared to
>> other domains. Saying current model, dom0 is requesting to
>> block in its own idle loop. In this way, dom0's idle loop
>> doesn't occupy any real slice, and the whole period allocated
>> to dom0 is all spent on meaningful job.
>
>You misunderstood my suggestion. We would still switch to the idle
>domain, we just load the dom0 bulk state such that the lazy switch
logic
>won't won't have to do anything should dom0 be the next domain to run.
>
>Ian

Then, I fully agree! ;-)

Thanks,
Kevin

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