From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH] KVM: Defer remote tlb flushes on invlpg (v2)
Date: Wed, 18 Mar 2009 08:23:45 +0200
Message-ID: <49C09371.8000003@redhat.com>
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Cc: Andrea Arcangeli <aarcange@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org
To: Andi Kleen <andi@firstfloor.org>
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Andi Kleen wrote:
>> KVM flushes tlbs on remote cpus for two purposes: to protect guest pages
>> that it needs to collect information about, and to prevent stale tlb entries
>> from pointing to pages that no longer belong to the guest.
>>     
>
> I assume you have numbers with some benchmark how much that 
> improves performance. It would be nice to add them to the 
> commit log.
>   

Your assumption is incorrect; I did not benchmark this patch.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.