From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rik van Riel <riel@redhat.com>
Subject: Re: [RFC] Implement Batched (group) ticket lock
Date: Wed, 28 May 2014 21:18:10 -0400
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To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>, KVM list <kvm@vger.kernel.org>, Peter Zijlstra <peterz@infradead.org>, Oleg Nesterov <oleg@redhat.com>, Paul Gortmaker <paul.gortmaker@windriver.com>, Peter Anvin <hpa@zytor.com>, Andi Kleen <ak@linux.intel.com>, Gleb Natapov <gleb@redhat.com>, the arch/x86 maintainers <x86@kernel.org>, Ingo Molnar <mingo@redhat.com>, xen-devel@lists.xenproject.org, Paul McKenney <paulmck@linux.vnet.ibm.com>, virtualization <virtualization@lists.linux-foundation.org>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Dave Jones <davej@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, fernando_b1@lab.ntt.co.jp, "Vinod, Chegu" <chegu_vinod@hp.com>, Waiman Long <waiman.long@hp.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Paolo Bonzini <pbonzini@redhat.com>
List-Id: virtualization@lists.linuxfoundation.org

On 05/28/2014 06:19 PM, Linus Torvalds wrote:

> If somebody has a P4 still, that's likely the worst case by far.

I'm sure cmpxchg isn't the only thing making P4 the worst case :)

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