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Re: [RFC][PATCH][0/4] Memory controller (RSS Control) [message #10418 is a reply to message #10413]

Mon, 19 February 2007 09:06

Paul Menage
Messages: 642
Registered: September 2006

Senior Member

On 2/19/07, Andrew Morton <akpm@linux-foundation.org> wrote:
>
> Alas, I fear this might have quite bad worst-case behaviour. One small
> container which is under constant memory pressure will churn the
> system-wide LRUs like mad, and will consume rather a lot of system time.
> So it's a point at which container A can deleteriously affect things which
> are running in other containers, which is exactly what we're supposed to
> not do.

I think it's OK for a container to consume lots of system time during
reclaim, as long as we can account that time to the container involved
(i.e. if it's done during direct reclaim rather than by something like
kswapd).

Churning the LRU could well be bad though, I agree.

Paul

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[Message index]

		[RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 06:50
		[RFC][PATCH][1/4] RSS controller setup By: Balbir Singh on Mon, 19 February 2007 06:50
		Re: [RFC][PATCH][1/4] RSS controller setup By: Paul Menage on Mon, 19 February 2007 09:18
		Re: [RFC][PATCH][1/4] RSS controller setup By: Balbir Singh on Mon, 19 February 2007 11:13
		Re: [RFC][PATCH][1/4] RSS controller setup By: Matt Helsley on Mon, 19 February 2007 19:43
		Re: [RFC][PATCH][1/4] RSS controller setup By: Balbir Singh on Mon, 19 February 2007 10:06
		Re: [RFC][PATCH][1/4] RSS controller setup By: Andrew Morton on Mon, 19 February 2007 08:57
		[RFC][PATCH][2/4] Add RSS accounting and control By: Balbir Singh on Mon, 19 February 2007 06:50
		Re: [RFC][PATCH][2/4] Add RSS accounting and control By: Andrew Morton on Mon, 19 February 2007 08:58
		[RFC][PATCH][4/4] RSS controller documentation By: Balbir Singh on Mon, 19 February 2007 06:50
		[RFC][PATCH][3/4] Add reclaim support By: Balbir Singh on Mon, 19 February 2007 06:50
		Re: [RFC][PATCH][3/4] Add reclaim support By: KAMEZAWA Hiroyuki on Mon, 19 February 2007 09:48
		Re: [RFC][PATCH][3/4] Add reclaim support By: Balbir Singh on Mon, 19 February 2007 10:52
		Re: [RFC][PATCH][3/4] Add reclaim support By: Balbir Singh on Mon, 19 February 2007 10:50
		Re: [RFC][PATCH][3/4] Add reclaim support By: Andrew Morton on Mon, 19 February 2007 11:10
		Re: [RFC][PATCH][3/4] Add reclaim support By: Balbir Singh on Mon, 19 February 2007 11:16
		Re: [RFC][PATCH][3/4] Add reclaim support By: Andrew Morton on Mon, 19 February 2007 08:59
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Paul Menage on Mon, 19 February 2007 09:06
		Re: [ckrm-tech] [RFC][PATCH][0/4] Memory controller (RSS Control) By: dev on Mon, 19 February 2007 09:46
		Re: [ckrm-tech] [RFC][PATCH][0/4] Memory controller (RSS Control) By: Paul Menage on Mon, 19 February 2007 09:50
		Re: [ckrm-tech] [RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 10:24
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 10:39
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 10:00
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 10:45
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Magnus Damm on Mon, 19 February 2007 11:56
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Andrew Morton on Mon, 19 February 2007 08:54
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Magnus Damm on Mon, 19 February 2007 09:16
		Re: [RFC][PATCH][0/4] Memory controller (RSS Control) By: Balbir Singh on Mon, 19 February 2007 14:07

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