From: William Lee Irwin III <wli@holomorphy.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: linux-mm@kvack.org
Subject: Re: [PATCH 00 of 16] OOM related fixes
Date: Fri, 8 Jun 2007 14:26:10 -0700 [thread overview]
Message-ID: <20070608212610.GA11773@holomorphy.com> (raw)
In-Reply-To: <patchbomb.1181332978@v2.random>
On Fri, Jun 08, 2007 at 10:02:58PM +0200, Andrea Arcangeli wrote:
> Hello everyone,
> this is a set of fixes done in the context of a quite evil workload reading
> from nfs large files with big read buffers in parallel from many tasks at
> the same time until the system goes oom. Mostly all of these fixes seems to be
> required to fix the customer workload on top of an older sles kernel. The
> forward port of the fixes has been already tested successfully on similar evil
> workloads.
> mainline vanilla running a somewhat simulated workload:
[...]
Interesting. This seems to demonstrate a need for file IO to handle
fatal signals, beyond just people wanting faster responses to kill -9.
Perhaps it's the case that fatal signals should always be handled, and
there should be no waiting primitives excluding them. __GFP_NOFAIL is
also "interesting."
-- wli
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next prev parent reply other threads:[~2007-06-08 21:26 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-08 20:02 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
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 ` William Lee Irwin III [this message]
2007-06-09 14:55 ` [PATCH 00 of 16] OOM related fixes Andrea Arcangeli
2007-06-12 8:58 ` Petr Tesarik
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