linux-kernel - Re: [PATCH 3/3][RFC] swsusp: shrink file cache first

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Message-Id: <1234041651.7277.5.camel@nigel-laptop>
Date:	Sun, 08 Feb 2009 08:20:51 +1100
From:	Nigel Cunningham <ncunningham-lkml@...a.org.au>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>, rjw@...k.pl,
	riel@...hat.com, linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 3/3][RFC] swsusp: shrink file cache first

Hi.

On Sun, 2009-02-08 at 01:51 +0900, KOSAKI Motohiro wrote:
> akpm wrote:
> --------------
>  And what was the observed effect of all this?
> 
> Rafael wrote:
> --------------
> Measurable effects:
> 1) It tends to free only as much memory as required, eg. if the image_size
> is set to 450 MB, the actual image sizes are almost always well above
> 400 MB and they tended to be below that number without the patch
> (~5-10% of a difference, but still :-)).

Do you always get at least the number of pages you ask for, if that's
possible?

Regards,

Nigel

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