From: Keir Fraser <keir.fraser@eu.citrix.com>
To: "Jiang, Yunhong" <yunhong.jiang@intel.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PROPOSAL] Doing work in idle-vcpu context
Date: Mon, 19 Apr 2010 07:45:53 +0100 [thread overview]
Message-ID: <C7F1BAB1.11ADE%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <789F9655DD1B8F43B48D77C5D30659731D797DC3@shsmsx501.ccr.corp.intel.com>
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
next prev parent reply other threads:[~2010-04-19 6:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-16 18:05 [PROPOSAL] Doing work in idle-vcpu context Keir Fraser
2010-04-19 5:00 ` Juergen Gross
2010-04-19 5:55 ` Jiang, Yunhong
2010-04-19 6:08 ` Dulloor
2010-04-19 6:53 ` Keir Fraser
2010-04-19 6:45 ` Keir Fraser [this message]
2010-04-19 9:43 ` George Dunlap
2010-04-19 10:52 ` Keir Fraser
2010-04-20 6:50 ` Dulloor
2010-04-20 12:47 ` Keir Fraser
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