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From: Tomasz Chmielewski <mangoo@wpkg.org>
To: LKML <linux-kernel@vger.kernel.org>, zbr@ioremap.net
Subject: Re: Linux killed Kenny, bastard!
Date: Tue, 13 Jan 2009 11:58:38 +0100	[thread overview]
Message-ID: <496C73DE.3030600@wpkg.org> (raw)

>> On Tue, 13 Jan 2009, Evgeniy Polyakov wrote:
>> 
>> > Like anything that spawns a thread or process per request/client, or
>> > preallocates set of them which connect to the huge object like database.
>> > Most of the time database/server is killed first instead of comparably
>> > small clients.
>> 
>> No, the reverse is true: when a task is chosen for oom kill based on the 
>> badness heuristic, the oom killer first attempts to kill any child task 
>> that isn't attached to the same mm.  If the child shares an mm, both tasks 
>> must die before memory freeing can occur.
> 
> It is a theory, not a practice. OOM-killer most of time starts from ssh,
> database and lighttpd on the tested machines, when it could start in
> the reverse order and do not touch ssh at all. Better not from daemon
> itself, but its fastcgi spawned processes.

How does this feature relate to:

config ANDROID_LOW_MEMORY_KILLER
         bool "Android Low Memory Killer"
         default N
         ---help---
           Register processes to be killed when memory is low

available in Staging drivers / Android?


-- 
Tomasz Chmielewski
http://wpkg.org


             reply	other threads:[~2009-01-13 11:09 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-13 10:58 Tomasz Chmielewski [this message]
2009-01-13 12:10 ` ANDROID low memory killer register (was Linux killed Kenny, bastard!) Alan Cox
2009-01-13 12:23   ` Evgeniy Polyakov
2009-01-13 12:27     ` Alan Cox
2009-01-13 12:20 ` Linux killed Kenny, bastard! Evgeniy Polyakov
     [not found] <bTxPW-1lH-13@gated-at.bofh.it>
     [not found] ` <bTE53-5LJ-13@gated-at.bofh.it>
     [not found]   ` <bTEeI-5Y0-15@gated-at.bofh.it>
     [not found]     ` <bTGTe-1K5-3@gated-at.bofh.it>
     [not found]       ` <bTNi6-3kb-9@gated-at.bofh.it>
     [not found]         ` <bTOea-4QT-1@gated-at.bofh.it>
     [not found]           ` <bTQ6f-7Qs-1@gated-at.bofh.it>
     [not found]             ` <bTQpv-5o-3@gated-at.bofh.it>
     [not found]               ` <bTQzd-iK-5@gated-at.bofh.it>
     [not found]                 ` <bTXhp-2IA-31@gated-at.bofh.it>
     [not found]                   ` <bTZjb-62D-25@gated-at.bofh.it>
2009-01-17 15:21                     ` Bodo Eggert
2009-01-17 15:41                       ` Evgeniy Polyakov
2009-01-18 12:49                         ` Bodo Eggert
2009-01-18 13:17                           ` Evgeniy Polyakov
  -- strict thread matches above, loose matches on Subject: below --
2009-01-12 15:33 Evgeniy Polyakov
2009-01-12 15:44 ` Dave Jones
2009-01-12 15:48   ` Evgeniy Polyakov
2009-01-12 15:51     ` Alan Cox
2009-01-12 15:52       ` Evgeniy Polyakov
2009-01-12 21:29         ` Chris Snook
2009-01-12 21:42           ` Evgeniy Polyakov
2009-01-12 15:49 ` Alan Cox
2009-01-12 15:50   ` Evgeniy Polyakov
2009-01-12 15:52     ` Alan Cox
2009-01-12 15:56       ` Evgeniy Polyakov
2009-01-12 16:19         ` Alan Cox
2009-01-12 16:29           ` Evgeniy Polyakov
2009-01-12 23:00             ` Bill Davidsen
2009-01-12 23:17               ` Evgeniy Polyakov
2009-01-13  1:53                 ` David Rientjes
2009-01-13  8:52                   ` Evgeniy Polyakov
2009-01-13  9:54                     ` David Rientjes
2009-01-13 11:54                       ` Evgeniy Polyakov
2009-01-13 12:15                         ` Alan Cox
2009-01-13 12:29                           ` Evgeniy Polyakov
2009-01-13 13:19                             ` Theodore Tso
2009-01-13 13:35                               ` Evgeniy Polyakov
2009-01-14  0:24                                 ` Bill Davidsen
2009-01-14  0:35                                   ` Evgeniy Polyakov
2009-01-13 13:47                               ` Alan Cox
2009-01-13 19:36                             ` David Rientjes
2009-01-13 21:46                               ` Evgeniy Polyakov
2009-01-13 22:49                                 ` Theodore Tso
2009-01-13 23:02                                   ` Evgeniy Polyakov
2009-01-14  1:11                                     ` Theodore Tso
2009-01-14  1:20                                       ` Evgeniy Polyakov
2009-01-14  4:06                                         ` Theodore Tso
2009-01-13 23:10                                 ` David Rientjes
2009-01-13 23:35                                   ` Evgeniy Polyakov
2009-01-13 23:43                                     ` David Rientjes
2009-01-13 23:55                                       ` Evgeniy Polyakov
2009-01-14  0:32                                         ` David Rientjes
2009-01-14  0:53                                           ` Evgeniy Polyakov
2009-01-14  4:23                                     ` Valdis.Kletnieks
2009-01-14  9:07                                       ` Evgeniy Polyakov
2009-01-13 19:15                         ` David Rientjes
2009-01-13 22:00                           ` Evgeniy Polyakov
2009-01-13 23:26                         ` Valdis.Kletnieks
2009-01-13 23:36                           ` Evgeniy Polyakov
2009-01-13 13:41                       ` Jan-Frode Myklebust
2009-01-13 13:59                         ` Alan Cox
2009-01-12 16:22         ` Dave Jones
2009-01-12 16:28           ` Evgeniy Polyakov
2009-01-13 16:35 ` KOSAKI Motohiro
2009-01-13 22:04   ` Evgeniy Polyakov

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