linux-kernel - Re: [PATCH] use unfair spinlock when running on hypervisor.

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Message-ID: <4C05C5F9.3050808@redhat.com>
Date:	Wed, 02 Jun 2010 05:46:17 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Valdis.Kletnieks@...edu
CC:	Andi Kleen <andi@...stfloor.org>, Gleb Natapov <gleb@...hat.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org, hpa@...or.com,
	mingo@...e.hu, npiggin@...e.de, tglx@...utronix.de,
	mtosatti@...hat.com
Subject: Re: [PATCH] use unfair spinlock when running on hypervisor.

On 06/01/2010 08:39 PM, Valdis.Kletnieks@...edu wrote:
>> We are running everything on NUMA (since all modern machines are now
>> NUMA).  At what scale do the issues become observable?
>>      
> My 6-month-old laptop is NUMA? Comes as a surprise to me, and to the
> perfectly-running NUMA=n kernel I'm running.
>
> Or did you mean a less broad phrase than "all modern machines"?
>
>    

All modern two socket and above boards, sorry.

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

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