From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx190.postini.com [74.125.245.190]) by kanga.kvack.org (Postfix) with SMTP id A08566B0033 for ; Wed, 3 Jul 2013 14:42:00 -0400 (EDT) Date: Wed, 3 Jul 2013 20:41:24 +0200 From: Peter Zijlstra Subject: Re: [PATCH 12/13] mm: numa: Scan pages with elevated page_mapcount Message-ID: <20130703184124.GD18898@dyad.programming.kicks-ass.net> References: <1372861300-9973-1-git-send-email-mgorman@suse.de> <1372861300-9973-13-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1372861300-9973-13-git-send-email-mgorman@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML On Wed, Jul 03, 2013 at 03:21:39PM +0100, Mel Gorman wrote: > Note that the patch still leaves shared, file-backed in VM_EXEC vmas in > place guessing that these are shared library pages. Migrating them are > likely to be of major benefit as generally the expectation would be that > these are read-shared between caches and that iTLB and iCache pressure is > generally low. I'm failing to grasp.. we don't migrate them because migrating them would likely be beneficial? Missing a negative somewhere? -- 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