From: Christoph Lameter <clameter@sgi.com>
To: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <andrea@suse.de>,
linux-mm@kvack.org, Larry Woodman <lwoodman@redhat.com>
Subject: Re: [PATCH 15 of 16] limit reclaim if enough pages have been freed
Date: Mon, 11 Jun 2007 09:23:41 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0706110922420.15489@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <466C3A60.6080403@redhat.com>
On Sun, 10 Jun 2007, Rik van Riel wrote:
> Andrea Arcangeli wrote:
> > On Sun, Jun 10, 2007 at 01:20:50PM -0400, Rik van Riel wrote:
> > > code simultaneously, all starting out at priority 12 and
> > > not freeing anything until they all get to much lower
> > > priorities.
> >
> > BTW, this reminds me that I've been wondering if 2**12 is a too small
> > fraction of the lru to start the scan with.
>
> If the system has 1 TB of RAM, it's probably too big
> of a fraction :)
>
> We need something smarter.
Well this value is depending on a nodes memory not on the systems
total memory. So I think we are fine. 1TB systems (at least ours) are
comprised of nodes with 4GB/8GB/16GB of memory.
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next prev parent reply other threads:[~2007-06-11 16:23 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-08 20:02 [PATCH 00 of 16] OOM related fixes Andrea Arcangeli
2007-06-08 20:02 ` [PATCH 01 of 16] remove nr_scan_inactive/active Andrea Arcangeli
2007-06-10 17:36 ` Rik van Riel
2007-06-10 18:17 ` Andrea Arcangeli
2007-06-11 14:58 ` Rik van Riel
2007-06-26 17:08 ` Rik van Riel
2007-06-26 17:55 ` Andrew Morton
2007-06-26 19:02 ` Rik van Riel
2007-06-28 22:44 ` Rik van Riel
2007-06-28 22:57 ` Andrew Morton
2007-06-28 23:04 ` Rik van Riel
2007-06-28 23:13 ` Andrew Morton
2007-06-28 23:16 ` Rik van Riel
2007-06-28 23:29 ` Andrew Morton
2007-06-29 0:00 ` Rik van Riel
2007-06-29 0:19 ` Andrew Morton
2007-06-29 0:45 ` Rik van Riel
2007-06-29 1:12 ` Andrew Morton
2007-06-29 1:20 ` Rik van Riel
2007-06-29 1:29 ` Andrew Morton
2007-06-28 23:25 ` Andrea Arcangeli
2007-06-29 0:12 ` Andrew Morton
2007-06-29 13:38 ` Lee Schermerhorn
2007-06-29 14:12 ` Andrea Arcangeli
2007-06-29 14:59 ` Rik van Riel
2007-06-29 22:39 ` "Noreclaim Infrastructure" [was Re: [PATCH 01 of 16] remove nr_scan_inactive/active] Lee Schermerhorn
2007-06-29 22:42 ` RFC "Noreclaim Infrastructure - patch 1/3 basic infrastructure" Lee Schermerhorn
2007-06-29 22:44 ` RFC "Noreclaim Infrastructure patch 2/3 - noreclaim statistics..." Lee Schermerhorn
2007-06-29 22:49 ` "Noreclaim - client patch 3/3 - treat pages w/ excessively references anon_vma as nonreclaimable" Lee Schermerhorn
2007-06-26 20:37 ` [PATCH 01 of 16] remove nr_scan_inactive/active Andrea Arcangeli
2007-06-26 20:57 ` Rik van Riel
2007-06-26 22:21 ` Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 02 of 16] avoid oom deadlock in nfs_create_request Andrea Arcangeli
2007-06-10 17:38 ` Rik van Riel
2007-06-10 18:27 ` Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 03 of 16] prevent oom deadlocks during read/write operations Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 04 of 16] serialize oom killer Andrea Arcangeli
2007-06-09 6:43 ` Peter Zijlstra
2007-06-09 15:27 ` Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 05 of 16] avoid selecting already killed tasks Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 06 of 16] reduce the probability of an OOM livelock Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 07 of 16] balance_pgdat doesn't return the number of pages freed Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 08 of 16] don't depend on PF_EXITING tasks to go away Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 09 of 16] fallback killing more tasks if tif-memdie doesn't " Andrea Arcangeli
2007-06-08 21:57 ` Christoph Lameter
2007-06-08 20:03 ` [PATCH 10 of 16] stop useless vm trashing while we wait the TIF_MEMDIE task to exit Andrea Arcangeli
2007-06-08 21:48 ` Christoph Lameter
2007-06-09 1:59 ` Andrea Arcangeli
2007-06-09 3:01 ` Christoph Lameter
2007-06-09 14:05 ` Andrea Arcangeli
2007-06-09 14:38 ` Andrea Arcangeli
2007-06-11 16:07 ` Christoph Lameter
2007-06-11 16:50 ` Andrea Arcangeli
2007-06-11 16:57 ` Christoph Lameter
2007-06-11 17:51 ` Andrea Arcangeli
2007-06-11 17:56 ` Christoph Lameter
2007-06-11 18:22 ` Andrea Arcangeli
2007-06-11 18:39 ` Christoph Lameter
2007-06-11 18:58 ` Andrea Arcangeli
2007-06-11 19:25 ` Christoph Lameter
2007-06-11 16:04 ` Christoph Lameter
2007-06-08 20:03 ` [PATCH 11 of 16] the oom schedule timeout isn't needed with the VM_is_OOM logic Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 12 of 16] show mem information only when a task is actually being killed Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 13 of 16] simplify oom heuristics Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 14 of 16] oom select should only take rss into account Andrea Arcangeli
2007-06-10 17:17 ` Rik van Riel
2007-06-10 17:30 ` Andrea Arcangeli
2007-06-08 20:03 ` [PATCH 15 of 16] limit reclaim if enough pages have been freed Andrea Arcangeli
2007-06-10 17:20 ` Rik van Riel
2007-06-10 17:32 ` Andrea Arcangeli
2007-06-10 17:52 ` Rik van Riel
2007-06-11 16:23 ` Christoph Lameter [this message]
2007-06-11 16:57 ` Rik van Riel
2007-06-08 20:03 ` [PATCH 16 of 16] avoid some lock operation in vm fast path Andrea Arcangeli
2007-06-08 21:26 ` [PATCH 00 of 16] OOM related fixes William Lee Irwin III
2007-06-09 14:55 ` Andrea Arcangeli
2007-06-12 8:58 ` Petr Tesarik
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