linux-kernel - Re: [PATCH 01/10] mm: vmscan: Limit the number of pages kswapd reclaims at each priority

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Message-ID: <20130329082257.GB21227@dhcp22.suse.cz>
Date:	Fri, 29 Mar 2013 09:22:57 +0100
From:	Michal Hocko <mhocko@...e.cz>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Mel Gorman <mgorman@...e.de>, Linux-MM <linux-mm@...ck.org>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>,
	Rik van Riel <riel@...hat.com>,
	Zlatko Calusic <zcalusic@...sync.net>,
	Johannes Weiner <hannes@...xchg.org>,
	dormando <dormando@...ia.net>,
	Satoru Moriya <satoru.moriya@....com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/10] mm: vmscan: Limit the number of pages kswapd
 reclaims at each priority

On Thu 28-03-13 23:31:18, Jiri Slaby wrote:
> On 03/25/2013 10:13 AM, Jiri Slaby wrote:
> > BTW I very pray this will fix also the issue I have when I run ltp tests
> > (highly I/O intensive, esp. `growfiles') in a VM while playing a movie
> > on the host resulting in a stuttered playback ;).
> 
> No, this is still terrible. I was now updating a kernel in a VM and had
> problems to even move with cursor.

:/

> There was still 1.2G used by I/O cache.

Could you collect /proc/zoneinfo and /proc/vmstat (say in 1 or 2s
intervals)?
-- 
Michal Hocko
SUSE Labs
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