linux-kernel - Re: [PATCH 4/4] memcg: add anon_scan

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Date:	Wed, 30 Dec 2009 21:53:41 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	kosaki.motohiro@...fujitsu.com,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 4/4] memcg: add anon_scan_ratio to memory.stat file

> * KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> [2009-12-28 16:49:27]:
> 
> > anon_scan_ratio feature doesn't only useful for global VM pressure
> > analysis, but it also useful for memcg memroy pressure analysis.
> > 
> > Then, this patch add anon_scan_ratio field to memory.stat file too.
> > 
> > Instead, following debug statistics was removed. It isn't so user and/or
> > developer friendly.
> > 
> > 	- recent_rotated_anon
> > 	- recent_rotated_file
> > 	- recent_scanned_anon
> > 	- recent_scanned_file
> 
> I've been using these to look at statistics - specifically reclaim
> data on my developer kernels.

ok, I'll drop removing part. just add anon_scan_ratio.


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