From: Gleb Natapov <gleb@redhat.com>
To: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Ingo Molnar <mingo@elte.hu>, Avi Kivity <avi@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Suresh Siddha <suresh.b.siddha@intel.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [patch 0/2] x2apic optimization, round 4
Date: Mon, 2 May 2011 08:39:28 +0300 [thread overview]
Message-ID: <20110502053928.GB18376@redhat.com> (raw)
In-Reply-To: <BANLkTimpk3Ye=HvCohTbKT7Jzedo_V07Yg@mail.gmail.com>
On Sun, May 01, 2011 at 09:11:35PM +0400, Cyrill Gorcunov wrote:
> On Sun, May 1, 2011 at 8:46 PM, Ingo Molnar <mingo@elte.hu> wrote:
> >
> > * Avi Kivity <avi@redhat.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
> >
>
> Suresh has tested them on Westmere-Ex system, I personally don't have
> such machine.
Can you test in in KVM with x2apic emulation enabled?
--
Gleb.
next prev parent reply other threads:[~2011-05-02 5:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-30 17:14 [patch 0/2] x2apic optimization, round 4 Cyrill Gorcunov
2011-04-30 17:15 ` [patch 1/2] x86, x2apic: minimize IPI register writes using cluster groups v4 Cyrill Gorcunov
2011-05-01 17:18 ` Ingo Molnar
2011-04-30 17:15 ` [patch 2/2] x86, x2apic: Move the common bits of physical and cluster modes to x2apic.h v4 Cyrill Gorcunov
2011-04-30 20:14 ` [patch 0/2] x2apic optimization, round 4 Avi Kivity
2011-04-30 20:33 ` Cyrill Gorcunov
2011-05-01 16:46 ` Ingo Molnar
2011-05-01 17:11 ` Cyrill Gorcunov
2011-05-02 5:39 ` Gleb Natapov [this message]
2011-05-02 5:51 ` Cyrill Gorcunov
2011-05-02 7:09 ` Cyrill Gorcunov
2011-05-02 7:45 ` Gleb Natapov
2011-05-02 7:52 ` Cyrill Gorcunov
2011-05-02 8:04 ` Gleb Natapov
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