From mboxrd@z Thu Jan  1 00:00:00 1970
From: Asias He <asias.hejun@gmail.com>
Subject: Re: [PATCH 6/7] KVM-GST: adjust scheduler cpu power
Date: Tue, 14 Jun 2011 10:47:58 +0800
Message-ID: <4DF6CBDE.2070208@gmail.com>
References: <1308007897-17013-1-git-send-email-glommer@redhat.com> <1308007897-17013-7-git-send-email-glommer@redhat.com>
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Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Rik van Riel <riel@redhat.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Avi Kivity <avi@redhat.com>,
	Anthony Liguori <aliguori@us.ibm.com>,
	Eric B Munson <emunson@mgebm.net>
To: Glauber Costa <glommer@redhat.com>
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On 06/14/2011 07:31 AM, Glauber Costa wrote:
> This is a first proposal for using steal time information
> to influence the scheduler. There are a lot of optimizations
> and fine grained adjustments to be done, but it is working reasonably
> so far for me (mostly)
> 
> With this patch (and some host pinnings to demonstrate the situation),
> two vcpus with very different steal time (Say 80 % vs 1 %) will not get
> an even distribution of processes. This is a situation that can naturally
> arise, specially in overcommited scenarios. Previosly, the guest scheduler
> would wrongly think that all cpus have the same ability to run processes,
> lowering the overall throughput.

One typo in the commit log:

s/Previosly/Previously

-- 
Best Regards,
Asias He