From mboxrd@z Thu Jan  1 00:00:00 1970
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Subject: Re: [PATCH RFC V8 0/17] Paravirtualized ticket spinlocks
Date: Mon, 07 May 2012 19:26:49 +0530
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To: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: Avi Kivity <avi@redhat.com>, Ingo Molnar <mingo@kernel.org>, Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org>, Jeremy Fitzhardinge <jeremy@goop.org>, Greg Kroah-Hartman <gregkh@suse.de>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, "H. Peter Anvin" <hpa@zytor.com>, Marcelo Tosatti <mtosatti@redhat.com>, X86 <x86@kernel.org>, Gleb Natapov <gleb@redhat.com>, Ingo Molnar <mingo@redhat.com>, Attilio Rao <attilio.rao@citrix.com>, Virtualization <virtualization@lists.linux-foundation.org>, Xen Devel <xen-devel@lists.xensource.com>, linux-doc@vger.kernel.org, KVM <kvm@vger.kernel.org>, Andi Kleen <andi@firstfloor.org>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Stephan Diestelhorst <stephan.diestelhorst@amd.com>, LKML <linux-kernel@vger.kernel.org>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Thomas Gleixner <tglx@linutr>
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On 05/07/2012 07:16 PM, Srivatsa Vaddagiri wrote:
> * Raghavendra K T<raghavendra.kt@linux.vnet.ibm.com>  [2012-05-07 19:08:51]:
>
>> I 'll get hold of a PLE mc  and come up with the numbers soon. but I
>> 'll expect the improvement around 1-3% as it was in last version.
>
> Deferring preemption (when vcpu is holding lock) may give us better than 1-3%
> results on PLE hardware. Something worth trying IMHO.
>

Yes, Sure. 'll take-up this and any scalability improvement possible 
further.