linux-kernel - Re: [RFC][PATCH 0/9] rework KVM mmu

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Message-ID: <4C19DF80.6060909@redhat.com>
Date:	Thu, 17 Jun 2010 11:40:32 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Dave Hansen <dave@...ux.vnet.ibm.com>
CC:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [RFC][PATCH 0/9] rework KVM mmu_shrink() code

On 06/16/2010 06:03 PM, Dave Hansen wrote:
> On Wed, 2010-06-16 at 11:38 +0300, Avi Kivity wrote:
>    
>> On 06/15/2010 04:55 PM, Dave Hansen wrote:
>>      
>>> These seem to boot and run fine.  I'm running about 40 VMs at
>>> once, while doing "echo 3>   /proc/sys/vm/drop_caches", and
>>> killing/restarting VMs constantly.
>>>
>>>        
>> Will drop_caches actually shrink the kvm caches too?  If so we probably
>> need to add that to autotest since it's a really good stress test for
>> the mmu.
>>      
> I'm completely sure.

Yes, easily seen from the code as well.

> I crashed my machines several times this way
> during testing.
>    

Hopefully only with your patches applied?

I'll try to run autotest from time to time with drop_caches running in 
the background.  Looks like an excellent way to stress out the mmu.


-- 
error compiling committee.c: too many arguments to function

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