linux-kernel - Re: [PATCH v3 1/1] kernel/sysctl.c: Add /proc/sys/vm/shrink

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Message-ID: <20150720084932.GC1211@dhcp22.suse.cz>
Date:	Mon, 20 Jul 2015 10:49:32 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Pintu Kumar <pintu.k@...sung.com>, akpm@...ux-foundation.org,
	corbet@....net, vbabka@...e.cz, gorcunov@...nvz.org,
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Subject: Re: [PATCH v3 1/1] kernel/sysctl.c: Add /proc/sys/vm/shrink_memory
 feature

On Mon 20-07-15 09:28:10, Mel Gorman wrote:
[...]
> If high-order allocation latency or reliability is important then you
> really need a different solution because unless this thing runs
> continually to keep memory unused then it'll eventually fail hard and
> the system will perform poorly in the meantime.

Completely agreed. E.g. Vlastimil was suggesting a background compaction
daemon which might be a way to go.
-- 
Michal Hocko
SUSE Labs
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