From: Andrea Arcangeli <aarcange@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: mingo@kernel.org, riel@redhat.com, oleg@redhat.com,
pjt@google.com, akpm@linux-foundation.org,
torvalds@linux-foundation.org, tglx@linutronix.de,
Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/19] sched-numa rewrite
Date: Wed, 8 Aug 2012 19:17:14 +0200 [thread overview]
Message-ID: <20120808171714.GM10459@redhat.com> (raw)
In-Reply-To: <20120731191204.540691987@chello.nl>
Hi everyone,
On Tue, Jul 31, 2012 at 09:12:04PM +0200, Peter Zijlstra wrote:
> Hi all,
>
> After having had a talk with Rik about all this NUMA nonsense where he proposed
> the scheme implemented in the next to last patch, I came up with a related
> means of doing the home-node selection.
>
> I've also switched to (ab)using PROT_NONE for driving the migration faults.
I'm glad we agree on the introduction of the numa hinting page faults.
I run a benchmark to compare your sched-numa rewrite with autonuma22:
http://www.kernel.org/pub/linux/kernel/people/andrea/autonuma/autonuma-vs-sched-numa-rewrite-20120808.pdf
> These patches go on top of tip/master with origin/master (Linus' tree) merged in.
It applied clean (with git am) on top of 3.6-rc1
(0d7614f09c1ebdbaa1599a5aba7593f147bf96ee) which already had a pull of
sched-core from tip and other tip bits. If that's not ok let me know
which commit I should use, and I'll repeat.
I released autonuma22 yesterday to provide an exact commit
(f958aa119a8ec417571ea8bdb527182d8ebe8b68) in case somebody wants to
reproduce the numbers on 2 node systems.
The autonuma-benchmark used to run the benchmark was at commit
65d93e485f09e3c1005e8c55cb5b1f97bd3a9ed8 which matches tag 0.1:
git clone git://gitorious.org/autonuma-benchmark/autonuma-benchmark.git
I'll update the pdf shortly by adding 8 node results too.
Thanks,
Andrea
next prev parent reply other threads:[~2012-08-08 17:17 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-31 19:12 [PATCH 00/19] sched-numa rewrite Peter Zijlstra
2012-07-31 19:12 ` [PATCH 01/19] task_work: Remove dependency on sched.h Peter Zijlstra
2012-07-31 20:52 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 02/19] mm/mpol: Remove NUMA_INTERLEAVE_HIT Peter Zijlstra
2012-07-31 20:52 ` Rik van Riel
2012-08-09 21:41 ` Andrea Arcangeli
2012-08-10 0:50 ` Andi Kleen
2012-07-31 19:12 ` [PATCH 03/19] mm/mpol: Make MPOL_LOCAL a real policy Peter Zijlstra
2012-07-31 20:52 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 04/19] mm, thp: Preserve pgprot across huge page split Peter Zijlstra
2012-07-31 20:53 ` Rik van Riel
2012-08-09 21:42 ` Andrea Arcangeli
2012-07-31 19:12 ` [PATCH 05/19] mm, mpol: Create special PROT_NONE infrastructure Peter Zijlstra
2012-07-31 20:55 ` Rik van Riel
2012-08-09 21:43 ` Andrea Arcangeli
2012-07-31 19:12 ` [PATCH 06/19] mm/mpol: Add MPOL_MF_LAZY Peter Zijlstra
2012-07-31 21:04 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 07/19] mm/mpol: Add MPOL_MF_NOOP Peter Zijlstra
2012-07-31 21:06 ` Rik van Riel
2012-08-09 21:44 ` Andrea Arcangeli
2012-10-01 9:36 ` Michael Kerrisk
2012-10-01 9:45 ` Ingo Molnar
2012-07-31 19:12 ` [PATCH 08/19] mm/mpol: Check for misplaced page Peter Zijlstra
2012-07-31 21:13 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 09/19] mm, migrate: Introduce migrate_misplaced_page() Peter Zijlstra
2012-07-31 21:16 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 10/19] mm, mpol: Use special PROT_NONE to migrate pages Peter Zijlstra
2012-07-31 21:24 ` Rik van Riel
2012-08-09 21:44 ` Andrea Arcangeli
2012-07-31 19:12 ` [PATCH 11/19] sched, mm: Introduce tsk_home_node() Peter Zijlstra
2012-07-31 21:30 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 12/19] mm/mpol: Make mempolicy home-node aware Peter Zijlstra
2012-07-31 21:33 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 13/19] sched: Introduce sched_feat_numa() Peter Zijlstra
2012-07-31 21:34 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 14/19] sched: Make find_busiest_queue() a method Peter Zijlstra
2012-07-31 21:34 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 15/19] sched: Implement home-node awareness Peter Zijlstra
2012-07-31 21:52 ` Rik van Riel
2012-08-09 21:51 ` Andrea Arcangeli
2012-07-31 19:12 ` [PATCH 16/19] sched, numa: NUMA home-node selection code Peter Zijlstra
2012-07-31 21:52 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 17/19] sched, numa: Detect big processes Peter Zijlstra
2012-07-31 21:53 ` Rik van Riel
2012-07-31 19:12 ` [PATCH 18/19] sched, numa: Per task memory placement for " Peter Zijlstra
2012-07-31 21:56 ` Rik van Riel
2012-08-08 21:35 ` Peter Zijlstra
2012-08-09 21:57 ` Andrea Arcangeli
2012-07-31 19:12 ` [PATCH 19/19] mm, numa: retry failed page migrations Peter Zijlstra
2012-08-02 20:40 ` Christoph Lameter
2012-08-08 17:17 ` Andrea Arcangeli [this message]
2012-08-08 18:43 ` [PATCH 00/19] sched-numa rewrite Rik van Riel
2012-08-17 18:08 ` Andrea Arcangeli
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