From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Ying Han <yinghan@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
linux-mm@kvack.org
Subject: Re: [patch] mm: skip rebalance of hopeless zones
Date: Fri, 10 Dec 2010 16:37:09 +0900 (JST) [thread overview]
Message-ID: <20101210163338.C7CA.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <20101210162623.C7C7.A69D9226@jp.fujitsu.com>
> > So we look at zone_reclaimable_pages() only to determine proceed
> > reclaiming or not. What if I have tons of unused dentry and inode
> > caches and we are skipping the shrinker here?
> >
> > --Ying
>
> Good catch!
> I perfectly agree with you.
The problem is, nunber of reclaimable slab doesn't give us any information.
There are frequently pinned and unreclaimable. That's one of the reason
now we are trying reclaim only when priority==DEF_PRIORITY even if all_unreclaimable=1.
slab shrinker should implement all_unreclaimable heuristics too?
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next prev parent reply other threads:[~2010-12-10 7:37 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-08 15:16 Johannes Weiner
2010-12-08 18:05 ` Rik van Riel
2010-12-08 22:19 ` Andrew Morton
2010-12-09 0:04 ` Johannes Weiner
2010-12-09 21:17 ` Andrew Morton
2010-12-10 16:27 ` Johannes Weiner
2011-01-05 11:15 ` Johannes Weiner
2011-01-04 23:56 ` Andrew Morton
2010-12-09 0:47 ` Rik van Riel
2010-12-09 14:34 ` Mel Gorman
2010-12-09 0:36 ` Simon Kirby
2010-12-09 0:49 ` Rik van Riel
2010-12-09 1:08 ` Simon Kirby
2010-12-09 14:42 ` Mel Gorman
2010-12-09 1:23 ` Andrew Morton
2010-12-09 1:55 ` Minchan Kim
2010-12-09 1:57 ` Minchan Kim
2010-12-09 2:01 ` Andrew Morton
2010-12-09 2:19 ` Minchan Kim
2010-12-09 5:18 ` Minchan Kim
2010-12-09 2:05 ` Simon Kirby
2010-12-09 8:55 ` Pekka Enberg
2010-12-09 14:46 ` Mel Gorman
2010-12-09 14:44 ` Mel Gorman
2010-12-09 18:03 ` Andrew Morton
2010-12-09 18:48 ` Ying Han
2010-12-10 11:34 ` Mel Gorman
2010-12-09 18:39 ` Ying Han
2010-12-10 11:37 ` Mel Gorman
2010-12-10 19:46 ` Ying Han
2010-12-09 1:29 ` Minchan Kim
2010-12-09 18:51 ` Ying Han
2010-12-10 7:25 ` KOSAKI Motohiro
2010-12-10 7:37 ` KOSAKI Motohiro [this message]
2010-12-10 10:54 ` Johannes Weiner
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