From: Andrea Arcangeli <aarcange@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Hillf Danton <dhillf@gmail.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Dan Smith <danms@us.ibm.com>, Paul Turner <pjt@google.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Rik van Riel <riel@redhat.com>, Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
linux-mm@kvack.org, Suresh Siddha <suresh.b.siddha@intel.com>,
Mike Galbraith <efault@gmx.de>,
Bharata B Rao <bharata.rao@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 11/39] autonuma: CPU follow memory algorithm
Date: Tue, 27 Mar 2012 18:15:40 +0200 [thread overview]
Message-ID: <20120327161540.GS5906@redhat.com> (raw)
In-Reply-To: <1332837595.16159.208.camel@twins>
On Tue, Mar 27, 2012 at 10:39:55AM +0200, Peter Zijlstra wrote:
> I am most certainly not going to fix your mess as I completely disagree
> with the approach taken.
This is _purely_ a performance optimization so if my design is so bad,
and you're also requiring all apps that spans over more than one NUMA
node to be modified to use your new syscalls, you won't have problems
to win against AutoNUMA in the benchmarks.
At the moment I can't believe your design has a chance to compete.
But please proof me wrong with the numbers, and I won't be stubborn
and I'll rm -r autonuma and (if you let me), I'll be happy to contribute
to your code.
> You're in fact very unclear. You post patches without the RFC tag,
Subject: [PATCH 00/39] [RFC] AutoNUMA alpha10
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next prev parent reply other threads:[~2012-03-27 16:16 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-26 17:45 [PATCH 00/39] [RFC] AutoNUMA alpha10 Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 01/39] autonuma: make set_pmd_at always available Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 02/39] xen: document Xen is using an unused bit for the pagetables Andrea Arcangeli
2012-03-30 21:40 ` Konrad Rzeszutek Wilk
2012-03-26 17:45 ` [PATCH 03/39] autonuma: define _PAGE_NUMA_PTE and _PAGE_NUMA_PMD Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 04/39] autonuma: x86 pte_numa() and pmd_numa() Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 05/39] autonuma: generic " Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 06/39] autonuma: teach gup_fast about pte_numa Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 07/39] autonuma: introduce kthread_bind_node() Andrea Arcangeli
2012-03-26 18:32 ` Peter Zijlstra
2012-03-27 15:22 ` Andrea Arcangeli
2012-03-27 15:45 ` Peter Zijlstra
2012-03-27 16:04 ` Andrea Arcangeli
2012-03-27 16:19 ` Peter Zijlstra
2012-03-26 17:45 ` [PATCH 08/39] autonuma: mm_autonuma and sched_autonuma data structures Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 09/39] autonuma: define the autonuma flags Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 10/39] autonuma: core autonuma.h header Andrea Arcangeli
2012-03-26 17:45 ` [PATCH 11/39] autonuma: CPU follow memory algorithm Andrea Arcangeli
2012-03-26 18:25 ` Peter Zijlstra
2012-03-26 19:28 ` Rik van Riel
2012-03-26 19:44 ` Andrea Arcangeli
2012-03-26 19:58 ` Linus Torvalds
2012-03-26 20:39 ` Andrea Arcangeli
2012-03-27 8:39 ` Peter Zijlstra
2012-03-27 14:37 ` Andrea Arcangeli
2012-03-27 16:15 ` Andrea Arcangeli [this message]
2012-03-28 11:26 ` Peter Zijlstra
2012-03-28 18:39 ` Andrea Arcangeli
2012-03-27 17:09 ` Ingo Molnar
2012-03-26 17:45 ` [PATCH 12/39] autonuma: add page structure fields Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 13/39] autonuma: knuma_migrated per NUMA node queues Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 14/39] autonuma: init knuma_migrated queues Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 15/39] autonuma: autonuma_enter/exit Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 16/39] autonuma: call autonuma_setup_new_exec() Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 17/39] autonuma: alloc/free/init sched_autonuma Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 18/39] autonuma: alloc/free/init mm_autonuma Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 19/39] mm: add unlikely to the mm allocation failure check Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 20/39] autonuma: avoid CFS select_task_rq_fair to return -1 Andrea Arcangeli
2012-03-26 19:36 ` Peter Zijlstra
2012-03-26 20:53 ` Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 21/39] autonuma: fix selecting task runqueue Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 22/39] autonuma: select_task_rq_fair cleanup new_cpu < 0 fix Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 23/39] autonuma: teach CFS about autonuma affinity Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 24/39] autonuma: fix finding idlest cpu Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 25/39] autonuma: fix selecting idle sibling Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 26/39] autonuma: select_idle_sibling cleanup target assignment Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 27/39] autonuma: core Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 28/39] autonuma: follow_page check for pte_numa/pmd_numa Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 29/39] autonuma: default mempolicy follow AutoNUMA Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 30/39] autonuma: call autonuma_split_huge_page() Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 31/39] autonuma: make khugepaged pte_numa aware Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 32/39] autonuma: retain page last_nid information in khugepaged Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 33/39] autonuma: numa hinting page faults entry points Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 34/39] autonuma: reset autonuma page data when pages are freed Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 35/39] autonuma: initialize page structure fields Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 36/39] autonuma: link mm/autonuma.o and kernel/sched/numa.o Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 37/39] autonuma: add CONFIG_AUTONUMA and CONFIG_AUTONUMA_DEFAULT_ENABLED Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 38/39] autonuma: boost khugepaged scanning rate Andrea Arcangeli
2012-03-26 17:46 ` [PATCH 39/39] autonuma: NUMA scheduler SMT awareness Andrea Arcangeli
2012-03-26 18:57 ` Peter Zijlstra
2012-03-27 0:00 ` Andrea Arcangeli
2012-03-28 13:51 ` Andrea Arcangeli
2012-04-03 20:35 ` [PATCH 00/39] [RFC] AutoNUMA alpha10 Srivatsa Vaddagiri
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