From mboxrd@z Thu Jan  1 00:00:00 1970
From: George Dunlap <george.dunlap@eu.citrix.com>
Subject: Re: [PROPOSAL] Doing work in idle-vcpu context
Date: Mon, 19 Apr 2010 10:43:16 +0100
Message-ID: <4BCC25B4.7010406@eu.citrix.com>
References: <C7EE6596.1192F%keir.fraser@eu.citrix.com>
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To: Keir Fraser <Keir.Fraser@eu.citrix.com>
Cc: "Jiang, Yunhong" <yunhong.jiang@intel.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
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Keir Fraser 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?
>   
I think it's a pretty good idea.  Obviously having to have the the idle 
thread be able to switch to "schedule me NOW" priority would involve 
some special-casing (esp with shared runqueues), but it shoudn't be too bad.

 -George