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From: Marcelo Tosatti <mtosatti@redhat.com>
To: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: Avi Kivity <avi@redhat.com>, KVM list <kvm@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/6] KVM MMU: optimize/cleanup for marking parent unsync
Date: Mon, 12 Apr 2010 14:12:11 -0300	[thread overview]
Message-ID: <20100412171211.GC4976@amt.cnet> (raw)
In-Reply-To: <4BC2D390.7050708@cn.fujitsu.com>

On Mon, Apr 12, 2010 at 04:02:24PM +0800, Xiao Guangrong wrote:
> - 'vcpu' is not used while mark parent unsync, so remove it
> - if it has alread marked unsync, no need to walk it's parent
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>

Xiao,

Did you actually see this codepath as being performance sensitive? 

I'd prefer to not touch it.


  parent reply	other threads:[~2010-04-12 17:12 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-12  7:59 [PATCH 1/6] KVM MMU: remove unused struct Xiao Guangrong
2010-04-12  8:01 ` [PATCH 2/6] KVM MMU: fix kvm_mmu_zap_page() and its calling path Xiao Guangrong
2010-04-12  8:24   ` Avi Kivity
2010-04-12  8:53     ` Xiao Guangrong
2010-04-12  9:08       ` Avi Kivity
2010-04-12  9:22         ` Xiao Guangrong
2010-04-12 10:25           ` Avi Kivity
2010-04-12 12:22             ` Xiao Guangrong
2010-04-12 12:49               ` Avi Kivity
2010-04-12 17:10   ` Marcelo Tosatti
2010-04-13  1:34     ` Xiao Guangrong
2010-04-13 14:59       ` Marcelo Tosatti
2010-04-14  2:14         ` Xiao Guangrong
2010-04-14 16:31           ` Marcelo Tosatti
2010-04-12  8:02 ` [PATCH 3/6] KVM MMU: optimize/cleanup for marking parent unsync Xiao Guangrong
2010-04-12  8:32   ` Avi Kivity
2010-04-12  8:55     ` Xiao Guangrong
2010-04-12 17:12   ` Marcelo Tosatti [this message]
2010-04-13  1:53     ` Xiao Guangrong
2010-04-13 11:58       ` Avi Kivity
2010-04-13 15:01       ` Marcelo Tosatti
2010-04-14  3:23         ` Xiao Guangrong
2010-04-14  3:58           ` Xiao Guangrong
2010-04-14 16:35           ` Marcelo Tosatti
2010-04-12  8:03 ` [PATCH 4/6] KVM MMU: optimize for writing cr4 Xiao Guangrong
2010-04-12  8:34   ` Avi Kivity
2010-04-12 10:42     ` Xiao Guangrong
2010-04-12 11:22       ` Avi Kivity
2010-04-13  3:07         ` Xiao Guangrong
2010-04-13  6:42           ` Avi Kivity
2010-04-12  8:05 ` [PATCH 5/6] KVM MMU: reduce kvm_mmu_page size Xiao Guangrong
2010-04-12  8:36   ` Avi Kivity
2010-04-12 11:11     ` Xiao Guangrong
2010-04-12  8:06 ` [PATCH 6/6] KVM MMU: optimize synchronization shadow pages Xiao Guangrong
2010-04-12  8:43   ` Avi Kivity
2010-04-12 11:14     ` Xiao Guangrong

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