Date: Mon, 7 May 2012 22:42:30 +0200 (CEST)
From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@kernel.org>
cc: Avi Kivity <avi@redhat.com>,
        Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
        Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
        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>
Subject: Re: [PATCH RFC V8 0/17] Paravirtualized ticket spinlocks
In-Reply-To: <20120507172527.GA5357@gmail.com>
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On Mon, 7 May 2012, Ingo Molnar wrote:
> * Avi Kivity <avi@redhat.com> wrote:
> 
> > > PS: Nikunj had experimented that pv-flush tlb + 
> > > paravirt-spinlock is a win on PLE where only one of them 
> > > alone could not prove the benefit.
> > 
> > I'd like to see those numbers, then.
> > 
> > Ingo, please hold on the kvm-specific patches, meanwhile.
> 
> I'll hold off on the whole thing - frankly, we don't want this 
> kind of Xen-only complexity. If KVM can make use of PLE then Xen 
> ought to be able to do it as well.
> 
> If both Xen and KVM makes good use of it then that's a different 
> matter.

Aside of that, it's kinda strange that a dude named "Nikunj" is
referenced in the argument chain, but I can't find him on the CC list.

Thanks,

	tglx
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