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Message-ID: <20091204190310.GI19624@x200.localdomain> Date: Fri, 4 Dec 2009 11:03:10 -0800 From: Chris Wright <chrisw@...hat.com> To: Andrea Arcangeli <aarcange@...hat.com> Cc: Chris Wright <chrisw@...hat.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Rik van Riel <riel@...hat.com>, Hugh Dickins <hugh.dickins@...cali.co.uk>, Andrew Morton <akpm@...ux-foundation.org>, Izik Eidus <ieidus@...hat.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [PATCH 2/9] ksm: let shared pages be swappable * Andrea Arcangeli (aarcange@...hat.com) wrote: > On Fri, Dec 04, 2009 at 09:16:40AM -0800, Chris Wright wrote: > > That's why I mentioned the page of zeroes as the prime example of > > something with a high mapcount that shouldn't really ever be evicted. > > Just a nitpick, "never" is too much, it should remain evictable if > somebody halts all VM from monitor and starts a workloads that fills > RAM and runs for a very prolonged time pushing all VM into swap. This > is especially true if we stick to the below approach and it isn't > just 1 page in high-sharing. Yup, I completely agree, that's what I was trying to convey by "shouldn't really ever" ;-) thanks, -chris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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