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From: "MinChan Kim" <minchan.kim@gmail.com>
To: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Pavel Machek" <pavel@suse.cz>, "Greg KH" <greg@kroah.com>,
	"Arve Hj?nnev?g" <arve@android.com>,
	"Brian Swetland" <swetland@google.com>,
	arve@google.com, "San Mehat" <san@android.com>,
	"Robert Love" <rlove@google.com>,
	linux-kernel@vger.kernel.org,
	"KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>,
	"Rik van Riel" <riel@redhat.com>
Subject: Re: lowmemory android driver not needed?
Date: Wed, 14 Jan 2009 21:18:32 +0900	[thread overview]
Message-ID: <28c262360901140418y242586cekd1c3220c2f4336a3@mail.gmail.com> (raw)
In-Reply-To: <20090114104834.18387fca@lxorguk.ukuu.org.uk>

Last time,  it seems my mail is lost.
My mail is mangled by web mail(gmail) which change my mail's base encoding type.

On Wed, Jan 14, 2009 at 7:48 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> > Alan, does this sound like it should remain in the tree?
>>
>> Maybe our oom killer should get a new tunable, telling it how
>> aggressive it should be, instead?
>
> I was thinking that, and it would integrate better with the OLPC work
> (which IMHO is a nicer interface for some stuff)
>
> You'd want two thresholds
>
> The 'arghhhh....' point where you start killing stuff
> The 'uh oh...' point where an OLPC style low memory notifier kicks in
>
> (OLPC's model is a handle you can select/poll for 'memory getting low' so
> apps can respond to pressure by doing stuff like dumping caches)

I guess OLPC model is similar to mem_notify.
Last year, Kosaki-san made mem_notify patch series.
It may help this situation.

http://lwn.net/Articles/268732/


> The rest ought to follow naturally IFF you can find a clean efficient way
> to measure that pressure and quantify it as a number. Our default would
> be like now, the Android default might be to trigger earlier..
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> Please read the FAQ at  http://www.tux.org/lkml/
>



-- 
Kinds regards,
MinChan Kim

  reply	other threads:[~2009-01-14 12:18 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-14  1:02 Greg KH
2009-01-14  2:18 ` Brian Swetland
2009-01-14  2:30   ` Arve Hjønnevåg
2009-01-14  3:52     ` Greg KH
2009-01-14 10:43       ` Pavel Machek
2009-01-14 10:48         ` Alan Cox
2009-01-14 12:18           ` MinChan Kim [this message]
2009-01-14 22:26           ` Arve Hjønnevåg
2009-01-14 23:17             ` Greg KH
2009-01-14 23:32               ` Arve Hjønnevåg
2009-01-15  0:12                 ` Greg KH
2009-01-15  0:54                   ` [PATCH] Staging: android: Add lowmemorykiller documentation Arve Hjønnevåg
2009-01-15  0:59                     ` Greg KH
2009-01-15 13:32                   ` lowmemory android driver not needed? Trilok Soni
2009-01-15 23:44                     ` Greg KH
2009-01-16  9:02                       ` Paul Mundt
2009-01-16 11:16                         ` KOSAKI Motohiro
2009-01-16 15:23                           ` Greg KH
2009-01-21  2:50                             ` KOSAKI Motohiro
2009-01-21  3:05                               ` Paul Mundt
2009-01-21  3:29                               ` KAMEZAWA Hiroyuki
2009-04-01 18:38                               ` Trilok Soni
2009-04-01 19:33                                 ` David Rientjes
2009-02-03 20:55                         ` Tony Lindgren
2009-01-16 11:42                     ` KOSAKI Motohiro
2009-01-16 13:18                       ` KOSAKI Motohiro
2009-01-22  6:13                         ` Arve Hjønnevåg
2009-01-29  1:48                           ` KOSAKI Motohiro
2009-01-29  2:51                             ` Arve Hjønnevåg
2009-01-29  3:45                               ` KAMEZAWA Hiroyuki
2009-01-29  4:27                                 ` Greg KH
2009-01-29  4:43                                   ` KOSAKI Motohiro
2009-01-29  4:59                                     ` Greg KH
2009-01-29  5:29                                       ` KOSAKI Motohiro
2009-01-30  6:20                                         ` Greg KH
2009-01-30  6:41                                           ` Brian Swetland
2009-02-03 13:40                                             ` KOSAKI Motohiro
2009-01-29 22:06                               ` Pavel Machek
2009-02-03 14:08                                 ` KOSAKI Motohiro
2009-01-15  7:55           ` David Rientjes
2009-01-14  6:45     ` MinChan Kim

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