linux-kernel - Re: [PATCH 1/2] vmscan: promote shared file mapped pages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20111102163527.GK19965@cmpxchg.org>
Date:	Wed, 2 Nov 2011 17:35:27 +0100
From:	Johannes Weiner <hannes@...xchg.org>
To:	Johannes Weiner <jweiner@...hat.com>
Cc:	Konstantin Khlebnikov <khlebnikov@...allels.com>,
	Pekka Enberg <penberg@...nel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>, Mel Gorman <mel@....ul.ie>,
	Minchan Kim <minchan.kim@...il.com>,
	Gene Heskett <gene.heskett@...il.com>
Subject: Re: [PATCH 1/2] vmscan: promote shared file mapped pages

On Wed, Nov 02, 2011 at 05:30:56PM +0100, Johannes Weiner wrote:
> Tipping the balance for inactive list rotation has been there from the
> beginning, but I don't quite understand why.  It probably was not a
> problem as the conditions for inactive cycling applied to both file
> and anon equally, but with used-once detection for file and deferred
> file writeback from direct reclaim, we tend to cycle more file pages
> on the inactive list than anonymous ones.  Those rotated pages should
> be a signal to favor file reclaim, though.

[...] should NOT be a signal [...]

obviously.  Sorry.
--
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/