From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: mhocko@kernel.org, js1304@gmail.com
Cc: iamjoonsoo.kim@lge.com, akpm@linux-foundation.org,
hughd@google.com, torvalds@linux-foundation.org,
hannes@cmpxchg.org, mgorman@suse.de, rientjes@google.com,
hillf.zj@alibaba-inc.com, kamezawa.hiroyu@jp.fujitsu.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
sergey.senozhatsky.work@gmail.com
Subject: Re: [PATCH 0/3] OOM detection rework v4
Date: Thu, 3 Mar 2016 19:29:47 +0900 [thread overview]
Message-ID: <201603031929.CCI95349.HOMQOOtJFFVLFS@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <20160303092634.GB26202@dhcp22.suse.cz>
Michal Hocko wrote:
> Sure we can be more intelligent and reset the counter if the
> feedback from compaction is optimistic and we are making some
> progress. This would be less hackish and the XXX comment points into
> that direction. For now I would like this to catch most loads reasonably
> and build better heuristics on top. I would like to do as much as
> possible to close the obvious regressions but I guess we have to expect
> there will be cases where the OOM fires and hasn't before and vice
> versa.
Aren't you forgetting that some people use panic_on_oom > 0 which means that
premature OOM killer invocation is fatal for them?
WARNING: multiple messages have this Message-ID (diff)
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
To: mhocko@kernel.org, js1304@gmail.com
Cc: iamjoonsoo.kim@lge.com, akpm@linux-foundation.org,
hughd@google.com, torvalds@linux-foundation.org,
hannes@cmpxchg.org, mgorman@suse.de, rientjes@google.com,
hillf.zj@alibaba-inc.com, kamezawa.hiroyu@jp.fujitsu.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
sergey.senozhatsky.work@gmail.com
Subject: Re: [PATCH 0/3] OOM detection rework v4
Date: Thu, 3 Mar 2016 19:29:47 +0900 [thread overview]
Message-ID: <201603031929.CCI95349.HOMQOOtJFFVLFS@I-love.SAKURA.ne.jp> (raw)
In-Reply-To: <20160303092634.GB26202@dhcp22.suse.cz>
Michal Hocko wrote:
> Sure we can be more intelligent and reset the counter if the
> feedback from compaction is optimistic and we are making some
> progress. This would be less hackish and the XXX comment points into
> that direction. For now I would like this to catch most loads reasonably
> and build better heuristics on top. I would like to do as much as
> possible to close the obvious regressions but I guess we have to expect
> there will be cases where the OOM fires and hasn't before and vice
> versa.
Aren't you forgetting that some people use panic_on_oom > 0 which means that
premature OOM killer invocation is fatal for them?
--
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next prev parent reply other threads:[~2016-03-03 10:29 UTC|newest]
Thread overview: 299+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 18:19 [PATCH 0/3] OOM detection rework v4 Michal Hocko
2015-12-15 18:19 ` Michal Hocko
2015-12-15 18:19 ` [PATCH 1/3] mm, oom: rework oom detection Michal Hocko
2015-12-15 18:19 ` Michal Hocko
2016-01-14 22:58 ` David Rientjes
2016-01-14 22:58 ` David Rientjes
2016-01-16 1:07 ` Tetsuo Handa
2016-01-16 1:07 ` Tetsuo Handa
2016-01-19 22:48 ` David Rientjes
2016-01-19 22:48 ` David Rientjes
2016-01-20 11:13 ` Tetsuo Handa
2016-01-20 11:13 ` Tetsuo Handa
2016-01-20 13:13 ` Michal Hocko
2016-01-20 13:13 ` Michal Hocko
2016-04-04 8:23 ` Vladimir Davydov
2016-04-04 8:23 ` Vladimir Davydov
2016-04-04 9:42 ` Michal Hocko
2016-04-04 9:42 ` Michal Hocko
2015-12-15 18:19 ` [PATCH 2/3] mm: throttle on IO only when there are too many dirty and writeback pages Michal Hocko
2015-12-15 18:19 ` Michal Hocko
2016-03-17 11:35 ` Tetsuo Handa
2016-03-17 11:35 ` Tetsuo Handa
2016-03-17 12:01 ` Michal Hocko
2016-03-17 12:01 ` Michal Hocko
2015-12-15 18:19 ` [PATCH 3/3] mm: use watermak checks for __GFP_REPEAT high order allocations Michal Hocko
2015-12-15 18:19 ` Michal Hocko
2015-12-16 23:35 ` [PATCH 0/3] OOM detection rework v4 Andrew Morton
2015-12-16 23:35 ` Andrew Morton
2015-12-18 12:12 ` Michal Hocko
2015-12-18 12:12 ` Michal Hocko
2015-12-16 23:58 ` Andrew Morton
2015-12-16 23:58 ` Andrew Morton
2015-12-18 13:15 ` Michal Hocko
2015-12-18 13:15 ` Michal Hocko
2015-12-18 16:35 ` Johannes Weiner
2015-12-18 16:35 ` Johannes Weiner
2015-12-24 12:41 ` Tetsuo Handa
2015-12-24 12:41 ` Tetsuo Handa
2015-12-28 12:08 ` Tetsuo Handa
2015-12-28 12:08 ` Tetsuo Handa
2015-12-28 14:13 ` Tetsuo Handa
2015-12-28 14:13 ` Tetsuo Handa
2016-01-06 12:44 ` Vlastimil Babka
2016-01-06 12:44 ` Vlastimil Babka
2016-01-08 12:37 ` Michal Hocko
2016-01-08 12:37 ` Michal Hocko
2015-12-29 16:32 ` Michal Hocko
2015-12-29 16:32 ` Michal Hocko
2015-12-30 15:05 ` Tetsuo Handa
2015-12-30 15:05 ` Tetsuo Handa
2016-01-02 15:47 ` Tetsuo Handa
2016-01-02 15:47 ` Tetsuo Handa
2016-01-20 12:24 ` Michal Hocko
2016-01-20 12:24 ` Michal Hocko
2016-01-27 23:18 ` David Rientjes
2016-01-27 23:18 ` David Rientjes
2016-01-28 21:19 ` Michal Hocko
2016-01-28 21:19 ` Michal Hocko
2015-12-29 16:27 ` Michal Hocko
2015-12-29 16:27 ` Michal Hocko
2016-01-28 20:40 ` [PATCH 4/3] mm, oom: drop the last allocation attempt before out_of_memory Michal Hocko
2016-01-28 20:40 ` Michal Hocko
2016-01-28 21:36 ` Johannes Weiner
2016-01-28 21:36 ` Johannes Weiner
2016-01-28 23:19 ` David Rientjes
2016-01-28 23:19 ` David Rientjes
2016-01-28 23:51 ` Johannes Weiner
2016-01-28 23:51 ` Johannes Weiner
2016-01-29 10:39 ` Tetsuo Handa
2016-01-29 10:39 ` Tetsuo Handa
2016-01-29 15:32 ` Michal Hocko
2016-01-29 15:32 ` Michal Hocko
2016-01-30 12:18 ` Tetsuo Handa
2016-01-30 12:18 ` Tetsuo Handa
2016-01-29 15:23 ` Michal Hocko
2016-01-29 15:23 ` Michal Hocko
2016-01-29 15:24 ` Michal Hocko
2016-01-29 15:24 ` Michal Hocko
2016-01-28 21:19 ` [PATCH 5/3] mm, vmscan: make zone_reclaimable_pages more precise Michal Hocko
2016-01-28 21:19 ` Michal Hocko
2016-01-28 23:20 ` David Rientjes
2016-01-28 23:20 ` David Rientjes
2016-01-29 3:41 ` Hillf Danton
2016-01-29 3:41 ` Hillf Danton
2016-01-29 10:35 ` Tetsuo Handa
2016-01-29 10:35 ` Tetsuo Handa
2016-01-29 15:17 ` Michal Hocko
2016-01-29 15:17 ` Michal Hocko
2016-01-29 21:30 ` Tetsuo Handa
2016-01-29 21:30 ` Tetsuo Handa
2016-02-03 13:27 ` [PATCH 0/3] OOM detection rework v4 Michal Hocko
2016-02-03 13:27 ` Michal Hocko
2016-02-03 22:58 ` David Rientjes
2016-02-03 22:58 ` David Rientjes
2016-02-04 12:57 ` Michal Hocko
2016-02-04 12:57 ` Michal Hocko
2016-02-04 13:10 ` Tetsuo Handa
2016-02-04 13:10 ` Tetsuo Handa
2016-02-04 13:39 ` Michal Hocko
2016-02-04 13:39 ` Michal Hocko
2016-02-04 14:24 ` Michal Hocko
2016-02-04 14:24 ` Michal Hocko
2016-02-07 4:09 ` Tetsuo Handa
2016-02-07 4:09 ` Tetsuo Handa
2016-02-15 20:06 ` Michal Hocko
2016-02-15 20:06 ` Michal Hocko
2016-02-16 13:10 ` Tetsuo Handa
2016-02-16 13:10 ` Tetsuo Handa
2016-02-16 15:19 ` Michal Hocko
2016-02-16 15:19 ` Michal Hocko
2016-02-25 3:47 ` Hugh Dickins
2016-02-25 3:47 ` Hugh Dickins
2016-02-25 6:48 ` Sergey Senozhatsky
2016-02-25 6:48 ` Sergey Senozhatsky
2016-02-25 9:17 ` Hillf Danton
2016-02-25 9:17 ` Hillf Danton
2016-02-25 9:27 ` Michal Hocko
2016-02-25 9:27 ` Michal Hocko
2016-02-25 9:48 ` Hillf Danton
2016-02-25 9:48 ` Hillf Danton
2016-02-25 11:02 ` Sergey Senozhatsky
2016-02-25 11:02 ` Sergey Senozhatsky
2016-02-25 9:23 ` Michal Hocko
2016-02-25 9:23 ` Michal Hocko
2016-02-26 6:32 ` Hugh Dickins
2016-02-26 6:32 ` Hugh Dickins
2016-02-26 7:54 ` Hillf Danton
2016-02-26 7:54 ` Hillf Danton
2016-02-26 9:24 ` Michal Hocko
2016-02-26 9:24 ` Michal Hocko
2016-02-26 10:27 ` Hillf Danton
2016-02-26 10:27 ` Hillf Danton
2016-02-26 13:49 ` Michal Hocko
2016-02-26 13:49 ` Michal Hocko
2016-02-26 9:33 ` Michal Hocko
2016-02-26 9:33 ` Michal Hocko
2016-02-29 21:02 ` Michal Hocko
2016-02-29 21:02 ` Michal Hocko
2016-03-02 2:19 ` Joonsoo Kim
2016-03-02 2:19 ` Joonsoo Kim
2016-03-02 9:50 ` Michal Hocko
2016-03-02 9:50 ` Michal Hocko
2016-03-02 13:32 ` Joonsoo Kim
2016-03-02 13:32 ` Joonsoo Kim
2016-03-02 14:06 ` Michal Hocko
2016-03-02 14:06 ` Michal Hocko
2016-03-02 14:34 ` Joonsoo Kim
2016-03-02 14:34 ` Joonsoo Kim
2016-03-03 9:26 ` Michal Hocko
2016-03-03 9:26 ` Michal Hocko
2016-03-03 10:29 ` Tetsuo Handa [this message]
2016-03-03 10:29 ` Tetsuo Handa
2016-03-03 14:10 ` Joonsoo Kim
2016-03-03 14:10 ` Joonsoo Kim
2016-03-03 15:25 ` Michal Hocko
2016-03-03 15:25 ` Michal Hocko
2016-03-04 5:23 ` Joonsoo Kim
2016-03-04 5:23 ` Joonsoo Kim
2016-03-04 15:15 ` Michal Hocko
2016-03-04 15:15 ` Michal Hocko
2016-03-04 17:39 ` Michal Hocko
2016-03-04 17:39 ` Michal Hocko
2016-03-07 5:23 ` Joonsoo Kim
2016-03-07 5:23 ` Joonsoo Kim
2016-03-03 15:50 ` Vlastimil Babka
2016-03-03 15:50 ` Vlastimil Babka
2016-03-03 16:26 ` Michal Hocko
2016-03-03 16:26 ` Michal Hocko
2016-03-04 7:10 ` Joonsoo Kim
2016-03-04 7:10 ` Joonsoo Kim
2016-03-02 15:01 ` Minchan Kim
2016-03-02 15:01 ` Minchan Kim
2016-03-07 16:08 ` [PATCH] mm, oom: protect !costly allocations some more (was: Re: [PATCH 0/3] OOM detection rework v4) Michal Hocko
2016-03-07 16:08 ` Michal Hocko
2016-03-08 3:51 ` Sergey Senozhatsky
2016-03-08 3:51 ` Sergey Senozhatsky
2016-03-08 9:08 ` Michal Hocko
2016-03-08 9:08 ` Michal Hocko
2016-03-08 9:24 ` Sergey Senozhatsky
2016-03-08 9:24 ` Sergey Senozhatsky
2016-03-08 9:24 ` [PATCH] mm, oom: protect !costly allocations some more Vlastimil Babka
2016-03-08 9:24 ` Vlastimil Babka
2016-03-08 9:32 ` Sergey Senozhatsky
2016-03-08 9:32 ` Sergey Senozhatsky
2016-03-08 9:46 ` Michal Hocko
2016-03-08 9:46 ` Michal Hocko
2016-03-08 9:52 ` Vlastimil Babka
2016-03-08 9:52 ` Vlastimil Babka
2016-03-08 10:10 ` Michal Hocko
2016-03-08 10:10 ` Michal Hocko
2016-03-08 11:12 ` Vlastimil Babka
2016-03-08 11:12 ` Vlastimil Babka
2016-03-08 12:22 ` Michal Hocko
2016-03-08 12:22 ` Michal Hocko
2016-03-08 12:29 ` Vlastimil Babka
2016-03-08 12:29 ` Vlastimil Babka
2016-03-08 9:58 ` [PATCH] mm, oom: protect !costly allocations some more (was: Re: [PATCH 0/3] OOM detection rework v4) Sergey Senozhatsky
2016-03-08 9:58 ` Sergey Senozhatsky
2016-03-08 13:57 ` Michal Hocko
2016-03-08 13:57 ` Michal Hocko
2016-03-08 10:36 ` Hugh Dickins
2016-03-08 13:42 ` [PATCH 0/2] oom rework: high order enahncements Michal Hocko
2016-03-08 13:42 ` Michal Hocko
2016-03-08 13:42 ` [PATCH 1/3] mm, compaction: change COMPACT_ constants into enum Michal Hocko
2016-03-08 13:42 ` Michal Hocko
2016-03-08 14:19 ` Vlastimil Babka
2016-03-08 14:19 ` Vlastimil Babka
2016-03-09 3:55 ` Hillf Danton
2016-03-09 3:55 ` Hillf Danton
2016-03-08 13:42 ` [PATCH 2/3] mm, compaction: cover all compaction mode in compact_zone Michal Hocko
2016-03-08 13:42 ` Michal Hocko
2016-03-08 14:22 ` Vlastimil Babka
2016-03-08 14:22 ` Vlastimil Babka
2016-03-09 3:57 ` Hillf Danton
2016-03-09 3:57 ` Hillf Danton
2016-03-08 13:42 ` [PATCH 3/3] mm, oom: protect !costly allocations some more Michal Hocko
2016-03-08 13:42 ` Michal Hocko
2016-03-08 14:34 ` Vlastimil Babka
2016-03-08 14:34 ` Vlastimil Babka
2016-03-08 14:48 ` Michal Hocko
2016-03-08 14:48 ` Michal Hocko
2016-03-08 15:03 ` Vlastimil Babka
2016-03-08 15:03 ` Vlastimil Babka
2016-03-09 11:11 ` Michal Hocko
2016-03-09 11:11 ` Michal Hocko
2016-03-09 14:07 ` Vlastimil Babka
2016-03-09 14:07 ` Vlastimil Babka
2016-03-11 12:17 ` Hugh Dickins
2016-03-11 12:17 ` Hugh Dickins
2016-03-11 13:06 ` Michal Hocko
2016-03-11 13:06 ` Michal Hocko
2016-03-11 19:08 ` Hugh Dickins
2016-03-11 19:08 ` Hugh Dickins
2016-03-14 16:21 ` Michal Hocko
2016-03-14 16:21 ` Michal Hocko
2016-03-08 15:19 ` [PATCH] mm, oom: protect !costly allocations some more (was: Re: [PATCH 0/3] OOM detection rework v4) Joonsoo Kim
2016-03-08 15:19 ` Joonsoo Kim
2016-03-08 16:05 ` Michal Hocko
2016-03-08 16:05 ` Michal Hocko
2016-03-08 17:03 ` Joonsoo Kim
2016-03-08 17:03 ` Joonsoo Kim
2016-03-09 10:41 ` Michal Hocko
2016-03-09 10:41 ` Michal Hocko
2016-03-11 14:53 ` Joonsoo Kim
2016-03-11 14:53 ` Joonsoo Kim
2016-03-11 15:20 ` Michal Hocko
2016-03-11 15:20 ` Michal Hocko
2016-02-29 20:35 ` [PATCH 0/3] OOM detection rework v4 Michal Hocko
2016-03-01 7:29 ` Hugh Dickins
2016-03-01 7:29 ` Hugh Dickins
2016-03-01 13:38 ` Michal Hocko
2016-03-01 13:38 ` Michal Hocko
2016-03-01 14:40 ` Michal Hocko
2016-03-01 14:40 ` Michal Hocko
2016-03-01 18:14 ` Vlastimil Babka
2016-03-01 18:14 ` Vlastimil Babka
2016-03-02 2:55 ` Joonsoo Kim
2016-03-02 2:55 ` Joonsoo Kim
2016-03-02 12:37 ` Michal Hocko
2016-03-02 12:37 ` Michal Hocko
2016-03-02 14:06 ` Joonsoo Kim
2016-03-02 14:06 ` Joonsoo Kim
2016-03-02 12:24 ` Michal Hocko
2016-03-02 13:00 ` Michal Hocko
2016-03-02 13:22 ` Vlastimil Babka
2016-03-02 13:22 ` Vlastimil Babka
2016-03-02 2:28 ` Joonsoo Kim
2016-03-02 2:28 ` Joonsoo Kim
2016-03-02 12:39 ` Michal Hocko
2016-03-02 12:39 ` Michal Hocko
2016-03-03 9:54 ` Hugh Dickins
2016-03-03 12:32 ` Michal Hocko
2016-03-03 12:32 ` Michal Hocko
2016-03-03 20:57 ` Hugh Dickins
2016-03-03 20:57 ` Hugh Dickins
2016-03-04 7:41 ` Vlastimil Babka
2016-03-04 7:41 ` Vlastimil Babka
2016-03-04 7:53 ` Joonsoo Kim
2016-03-04 7:53 ` Joonsoo Kim
2016-03-04 12:28 ` Michal Hocko
2016-03-04 12:28 ` Michal Hocko
2016-03-11 10:45 ` Tetsuo Handa
2016-03-11 10:45 ` Tetsuo Handa
2016-03-11 13:08 ` Michal Hocko
2016-03-11 13:08 ` Michal Hocko
2016-03-11 13:32 ` Tetsuo Handa
2016-03-11 13:32 ` Tetsuo Handa
2016-03-11 15:28 ` Michal Hocko
2016-03-11 15:28 ` Michal Hocko
2016-03-11 16:49 ` Tetsuo Handa
2016-03-11 16:49 ` Tetsuo Handa
2016-03-11 17:00 ` Michal Hocko
2016-03-11 17:00 ` Michal Hocko
2016-03-11 17:20 ` Tetsuo Handa
2016-03-11 17:20 ` Tetsuo Handa
2016-03-12 4:08 ` Tetsuo Handa
2016-03-12 4:08 ` Tetsuo Handa
2016-03-13 14:41 ` Tetsuo Handa
2016-03-13 14:41 ` Tetsuo Handa
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