From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f71.google.com (mail-pa0-f71.google.com [209.85.220.71]) by kanga.kvack.org (Postfix) with ESMTP id 12AA86B0005 for ; Fri, 15 Jul 2016 11:53:04 -0400 (EDT) Received: by mail-pa0-f71.google.com with SMTP id qh10so192193139pac.2 for ; Fri, 15 Jul 2016 08:53:04 -0700 (PDT) Received: from lgeamrelo13.lge.com (LGEAMRELO13.lge.com. [156.147.23.53]) by mx.google.com with ESMTP id o62si4809038pfb.55.2016.07.15.08.53.02 for ; Fri, 15 Jul 2016 08:53:03 -0700 (PDT) Date: Sat, 16 Jul 2016 00:53:02 +0900 From: Minchan Kim Subject: Re: [PATCH 3/5] mm, pagevec: Release/reacquire lru_lock on pgdat change Message-ID: <20160715155302.GD8644@bbox> References: <1468588165-12461-1-git-send-email-mgorman@techsingularity.net> <1468588165-12461-4-git-send-email-mgorman@techsingularity.net> MIME-Version: 1.0 In-Reply-To: <1468588165-12461-4-git-send-email-mgorman@techsingularity.net> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , Johannes Weiner , Vlastimil Babka , Linux-MM , LKML On Fri, Jul 15, 2016 at 02:09:23PM +0100, Mel Gorman wrote: > With node-lru, the locking is based on the pgdat. Previously it was > required that a pagevec drain released one zone lru_lock and acquired > another zone lru_lock on every zone change. Now, it's only necessary if > the node changes. The end-result is fewer lock release/acquires if the > pages are all on the same node but in different zones. > > Signed-off-by: Mel Gorman Acked-by: Minchan Kim check_move_unevictable_pages could be a candidate, too. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org