linux-kernel - Re: [patch 0/2] x2apic optimization, round 4

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Message-ID: <20110501164635.GA21833@elte.hu>
Date:	Sun, 1 May 2011 18:46:35 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Avi Kivity <avi@...hat.com>
Cc:	Cyrill Gorcunov <gorcunov@...nvz.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [patch 0/2] x2apic optimization, round 4


* Avi Kivity <avi@...hat.com> wrote:

> On 04/30/2011 08:14 PM, Cyrill Gorcunov wrote:
> >   Hi Ingo, here is an updated series of two patches for
> >x2apic cluster mode ipi optimization. Please take a
> >look.
> >
> >   The only concern which was unresolved is a messy bit
> >in default_setup_apic_routing(), so we've added a FIXME
> >there and clean it up as only time permits. Actually I
> >have a plan to merge probe_32/64.c into single file (and
> >even started working on this task) but not yes succeed.
> >
> >   Anyway I think patches should be in a good shape now and
> >probably we could merge them to not lose?
> >
> >   Comments are welcome.
> 
> Very nice!  This will also significantly speed up kvm guests using x2apic.

Ok. It would be nice to know on what systems these patches were tested, i.e. i 
suppose x2apic-enabled ones?

Thanks,

	Ingo
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