From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PROPOSAL] Doing work in idle-vcpu context
Date: Mon, 19 Apr 2010 07:45:53 +0100
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To: "Jiang, Yunhong" <yunhong.jiang@intel.com>, George Dunlap <George.Dunlap@eu.citrix.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
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On 19/04/2010 06:55, "Jiang, Yunhong" <yunhong.jiang@intel.com> wrote:

>> One bit of mechanism this would require is the ability to bump the idle vcpu
>> priority up - preferably to 'max' priority forcing it to run next until we
>> return it to idle/lowest priority. George: how hard would such a mechanism
>> be to implement do you think?
>> 
>> More generally: what do people think of this idea?
> 
> The only concern from me is, are there any assumption in other components that
> idle vcpu is always for idle, and is always lowest priority?

I suppose we would find out. I don't think so, except of course it is built
into the scheduler that it is lowest priority.

 -- Keir