From: Gilad Ben-Yossef <gilad@benyossef.com>
To: Chris Metcalf <cmetcalf@tilera.com>
Cc: linux-kernel@vger.kernel.org,
Christoph Lameter <cl@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Frederic Weisbecker <fweisbec@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
linux-mm@kvack.org, Pekka Enberg <penberg@kernel.org>,
Matt Mackall <mpm@selenic.com>,
Sasha Levin <levinsasha928@gmail.com>,
Rik van Riel <riel@redhat.com>, Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH v4 0/5] Reduce cross CPU IPI interference
Date: Wed, 23 Nov 2011 08:52:31 +0200 [thread overview]
Message-ID: <CAOtvUMdj--5O6xB6zzrk+kYDASHWxxRMAkN2K-2z3z5hSwzcyw@mail.gmail.com> (raw)
In-Reply-To: <4ECC4E1B.9050405@tilera.com>
Hi
On Wed, Nov 23, 2011 at 3:36 AM, Chris Metcalf <cmetcalf@tilera.com> wrote:
> On 11/22/2011 6:08 AM, Gilad Ben-Yossef wrote:
>> We have lots of infrastructure in place to partition a multi-core system such that we have a group of CPUs that are dedicated to
>
> Acked-by: Chris Metcalf <cmetcalf@tilera.com>
>
> I think this kind of work is very important as more and more processing
> moves to isolated cpus that need protection from miscellaneous kernel
> interrupts. Keep at it! :-)
Thank you very much. I believe it also has some small contribution to
keeping idle CPUs idle in a multi-core system. I consider this my
personal carbon offset effort :-)
My current plan is to take a look at each invocation of on_each_cpu in
core kernel code and see if it makes sense to give it a similar
treatment.
Thanks,
Gilad
--
Gilad Ben-Yossef
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gilad@benyossef.com
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prev parent reply other threads:[~2011-11-23 6:52 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-22 11:08 Gilad Ben-Yossef
2011-11-22 11:08 ` [PATCH v4 1/5] smp: Introduce a generic on_each_cpu_mask function Gilad Ben-Yossef
2011-11-22 11:08 ` [PATCH v4 2/5] arm: Move arm over to generic on_each_cpu_mask Gilad Ben-Yossef
2011-11-22 21:00 ` Russell King - ARM Linux
2011-11-23 6:47 ` Gilad Ben-Yossef
2011-11-22 11:08 ` [PATCH v4 3/5] tile: Move tile to use " Gilad Ben-Yossef
2011-11-22 11:08 ` [PATCH v4 4/5] slub: Only IPI CPUs that have per cpu obj to flush Gilad Ben-Yossef
2011-11-23 6:23 ` Pekka Enberg
2011-11-23 6:57 ` Pekka Enberg
2011-11-23 7:52 ` Gilad Ben-Yossef
2012-01-01 12:41 ` Avi Kivity
2012-01-01 16:12 ` Gilad Ben-Yossef
2012-01-01 16:50 ` Avi Kivity
2012-01-02 11:59 ` Gilad Ben-Yossef
2012-01-02 13:30 ` Avi Kivity
2012-01-08 16:13 ` Gilad Ben-Yossef
2012-01-08 16:15 ` Avi Kivity
2011-11-22 11:08 ` [PATCH v4 5/5] mm: Only IPI CPUs to drain local pages if they exist Gilad Ben-Yossef
2011-11-23 7:45 ` Pekka Enberg
2011-12-23 10:28 ` Mel Gorman
2011-12-25 9:39 ` Gilad Ben-Yossef
2011-12-30 15:04 ` Mel Gorman
2011-12-30 15:25 ` Chris Metcalf
2011-12-30 16:08 ` Mel Gorman
2011-12-30 20:29 ` Gilad Ben-Yossef
2012-01-01 8:03 ` Gilad Ben-Yossef
2011-12-30 20:16 ` Gilad Ben-Yossef
2011-11-23 1:36 ` [PATCH v4 0/5] Reduce cross CPU IPI interference Chris Metcalf
2011-11-23 6:52 ` Gilad Ben-Yossef [this message]
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