From: Andrea Arcangeli <aarcange@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rik van Riel <riel@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Hillf Danton <dhillf@gmail.com>, Dan Smith <danms@us.ibm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Paul Turner <pjt@google.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
Mike Galbraith <efault@gmx.de>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Bharata B Rao <bharata.rao@gmail.com>,
Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Christoph Lameter <cl@linux.com>
Subject: Re: [PATCH 13/35] autonuma: add page structure fields
Date: Tue, 29 May 2012 20:35:16 +0200 [thread overview]
Message-ID: <20120529183516.GO21339@redhat.com> (raw)
In-Reply-To: <1338310613.26856.139.camel@twins>
On Tue, May 29, 2012 at 06:56:53PM +0200, Peter Zijlstra wrote:
> On Tue, 2012-05-29 at 12:46 -0400, Rik van Riel wrote:
> > > I don't think it's too great, memcg uses for half of that and yet
> > > nobody is booting with cgroup_disable=memory even on not-NUMA servers
> > > with less RAM.
>
> Right, it was such a hit we had to disable that by default on RHEL6.
CONFIG_CGROUP_MEM_RES_CTLR is =y, do you mean it's set to
cgroup_disable=memory by default in grub? I didn't notice that.
If a certain amount of users is passing cgroup_disable=memory at boot
because they don't need the feature, well that's perfectly reasonable
and the way it should be. That's why such an option exists and why I
also provided a noautonuma parameter for the same reason.
> Right, hnaz did great work there, but wasn't there still some few pieces
> of the shadow page frame left? ISTR LSF/MM talk of moving the last few
> bits into the regular page frame, taking the word that became available
> through: fc9bb8c768 ("mm: Rearrange struct page").
memcg diet topic is there for a long time, they started working on it
more than 1 year ago, I'm currently referring to current upstream
(maybe 1 week ago old).
But this is normal, first you focus on the algorithm, then you worry
how to optimize the implementation to reduce the memory usage without
altering the runtime (well, without altering it too much at least...).
next prev parent reply other threads:[~2012-05-29 18:36 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-25 17:02 [PATCH 00/35] AutoNUMA alpha14 Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 01/35] mm: add unlikely to the mm allocation failure check Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 02/35] autonuma: make set_pmd_at always available Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 03/35] xen: document Xen is using an unused bit for the pagetables Andrea Arcangeli
2012-05-25 20:26 ` Konrad Rzeszutek Wilk
2012-05-26 15:59 ` Andrea Arcangeli
2012-05-29 14:10 ` Konrad Rzeszutek Wilk
2012-05-29 16:01 ` Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 04/35] autonuma: define _PAGE_NUMA_PTE and _PAGE_NUMA_PMD Andrea Arcangeli
2012-05-30 18:22 ` Konrad Rzeszutek Wilk
2012-05-30 18:34 ` Andrea Arcangeli
2012-05-30 20:01 ` Konrad Rzeszutek Wilk
2012-06-05 17:13 ` Andrea Arcangeli
2012-06-05 17:17 ` Konrad Rzeszutek Wilk
2012-06-05 17:40 ` Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 05/35] autonuma: x86 pte_numa() and pmd_numa() Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 06/35] autonuma: generic " Andrea Arcangeli
2012-05-30 20:23 ` Konrad Rzeszutek Wilk
2012-05-25 17:02 ` [PATCH 07/35] autonuma: teach gup_fast about pte_numa Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 08/35] autonuma: introduce kthread_bind_node() Andrea Arcangeli
2012-05-29 12:49 ` Peter Zijlstra
2012-05-29 16:11 ` Andrea Arcangeli
2012-05-29 17:04 ` Peter Zijlstra
2012-05-29 17:44 ` Andrea Arcangeli
2012-05-29 17:48 ` Peter Zijlstra
2012-05-29 18:15 ` Andrea Arcangeli
2012-05-30 20:26 ` Konrad Rzeszutek Wilk
2012-05-25 17:02 ` [PATCH 09/35] autonuma: mm_autonuma and sched_autonuma data structures Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 10/35] autonuma: define the autonuma flags Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 11/35] autonuma: core autonuma.h header Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 12/35] autonuma: CPU follow memory algorithm Andrea Arcangeli
2012-05-29 13:00 ` Peter Zijlstra
2012-05-29 13:54 ` Rik van Riel
2012-05-29 13:10 ` Peter Zijlstra
2012-06-22 17:36 ` Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 13/35] autonuma: add page structure fields Andrea Arcangeli
2012-05-29 13:16 ` Peter Zijlstra
2012-05-29 13:56 ` Rik van Riel
2012-05-29 14:54 ` Peter Zijlstra
2012-05-30 8:25 ` KOSAKI Motohiro
2012-05-30 9:06 ` Peter Zijlstra
2012-05-30 9:41 ` KOSAKI Motohiro
2012-05-30 9:55 ` Peter Zijlstra
2012-05-30 13:49 ` Andrea Arcangeli
2012-05-31 18:18 ` Peter Zijlstra
2012-06-05 14:51 ` Andrea Arcangeli
2012-06-19 18:06 ` Andrea Arcangeli
2012-05-29 16:38 ` Andrea Arcangeli
2012-05-29 16:46 ` Rik van Riel
2012-05-29 16:56 ` Peter Zijlstra
2012-05-29 18:35 ` Andrea Arcangeli [this message]
2012-05-29 17:38 ` Linus Torvalds
2012-05-29 18:09 ` Andrea Arcangeli
2012-05-29 20:42 ` Rik van Riel
2012-05-25 17:02 ` [PATCH 14/35] autonuma: knuma_migrated per NUMA node queues Andrea Arcangeli
2012-05-29 13:51 ` Peter Zijlstra
2012-05-30 0:14 ` Andrea Arcangeli
2012-05-30 18:19 ` Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 15/35] autonuma: init knuma_migrated queues Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 16/35] autonuma: autonuma_enter/exit Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 17/35] autonuma: call autonuma_setup_new_exec() Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 18/35] autonuma: alloc/free/init sched_autonuma Andrea Arcangeli
2012-05-30 20:55 ` Konrad Rzeszutek Wilk
2012-05-25 17:02 ` [PATCH 19/35] autonuma: alloc/free/init mm_autonuma Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 20/35] autonuma: avoid CFS select_task_rq_fair to return -1 Andrea Arcangeli
2012-05-29 14:02 ` Peter Zijlstra
2012-05-25 17:02 ` [PATCH 21/35] autonuma: teach CFS about autonuma affinity Andrea Arcangeli
2012-05-29 16:05 ` Peter Zijlstra
2012-05-25 17:02 ` [PATCH 22/35] autonuma: sched_set_autonuma_need_balance Andrea Arcangeli
2012-05-29 16:12 ` Peter Zijlstra
2012-05-29 17:33 ` Andrea Arcangeli
2012-05-29 17:43 ` Peter Zijlstra
2012-05-29 18:24 ` Andrea Arcangeli
2012-05-29 22:21 ` Peter Zijlstra
2012-05-25 17:02 ` [PATCH 23/35] autonuma: core Andrea Arcangeli
2012-05-29 11:45 ` Kirill A. Shutemov
2012-05-30 0:03 ` Andrea Arcangeli
2012-05-29 16:27 ` Peter Zijlstra
2012-05-25 17:02 ` [PATCH 24/35] autonuma: follow_page check for pte_numa/pmd_numa Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 25/35] autonuma: default mempolicy follow AutoNUMA Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 26/35] autonuma: call autonuma_split_huge_page() Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 27/35] autonuma: make khugepaged pte_numa aware Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 28/35] autonuma: retain page last_nid information in khugepaged Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 29/35] autonuma: numa hinting page faults entry points Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 30/35] autonuma: reset autonuma page data when pages are freed Andrea Arcangeli
2012-05-29 16:30 ` Peter Zijlstra
2012-05-29 16:49 ` Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 31/35] autonuma: initialize page structure fields Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 32/35] autonuma: link mm/autonuma.o and kernel/sched/numa.o Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 33/35] autonuma: add CONFIG_AUTONUMA and CONFIG_AUTONUMA_DEFAULT_ENABLED Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 34/35] autonuma: boost khugepaged scanning rate Andrea Arcangeli
2012-05-25 17:02 ` [PATCH 35/35] autonuma: page_autonuma Andrea Arcangeli
2012-05-29 16:44 ` Peter Zijlstra
2012-05-29 17:14 ` Andrea Arcangeli
2012-05-26 17:28 ` [PATCH 00/35] AutoNUMA alpha14 Rik van Riel
2012-05-26 20:42 ` Linus Torvalds
2012-05-29 15:53 ` Christoph Lameter
2012-05-29 16:08 ` Andrea Arcangeli
2012-05-30 14:46 ` Peter Zijlstra
2012-05-30 15:30 ` Ingo Molnar
2012-05-29 13:36 ` Kirill A. Shutemov
2012-05-29 15:43 ` Petr Holasek
2012-05-31 18:08 ` AutoNUMA15 Andrea Arcangeli
2012-06-07 2:30 ` AutoNUMA15 Zhouping Liu
2012-06-07 11:44 ` AutoNUMA15 Hillf Danton
2012-06-07 13:30 ` AutoNUMA15 Andrea Arcangeli
2012-06-07 14:08 ` AutoNUMA15 Zhouping Liu
2012-06-07 19:37 ` AutoNUMA15 Andrea Arcangeli
2012-06-08 6:09 ` AutoNUMA15 Zhouping Liu
2012-06-08 13:04 ` AutoNUMA15 Hillf Danton
2012-06-08 13:32 ` AutoNUMA15 Peter Zijlstra
2012-06-08 16:31 ` AutoNUMA15 Zhouping Liu
2012-06-08 13:43 ` AutoNUMA15 Chen
2012-06-21 7:29 ` AutoNUMA15 Alex Shi
2012-06-21 14:55 ` AutoNUMA15 Andrea Arcangeli
2012-06-26 7:52 ` AutoNUMA15 Alex Shi
2012-06-26 12:03 ` AutoNUMA15 Andrea Arcangeli
2012-07-12 2:36 ` AutoNUMA15 Alex Shi
2012-05-29 17:15 ` [PATCH 00/35] AutoNUMA alpha14 Andrea Arcangeli
2012-06-01 22:41 ` Mauricio Faria de Oliveira
2012-06-22 17:57 ` Andrea Arcangeli
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