From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m4.gw.fujitsu.co.jp ([10.0.50.74]) by fgwmail6.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id m9N2AHsn021360 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Thu, 23 Oct 2008 11:10:17 +0900 Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 397372AC026 for ; Thu, 23 Oct 2008 11:10:17 +0900 (JST) Received: from s7.gw.fujitsu.co.jp (s7.gw.fujitsu.co.jp [10.0.50.97]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 1360712C044 for ; Thu, 23 Oct 2008 11:10:17 +0900 (JST) Received: from s7.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s7.gw.fujitsu.co.jp (Postfix) with ESMTP id 0178B1DB803E for ; Thu, 23 Oct 2008 11:10:17 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.249.87.104]) by s7.gw.fujitsu.co.jp (Postfix) with ESMTP id B3EF11DB8037 for ; Thu, 23 Oct 2008 11:10:16 +0900 (JST) From: KOSAKI Motohiro Subject: Re: [patch 0/3] activate pages in batch In-Reply-To: <87prlsjcjg.fsf@saeurebad.de> References: <20081023104002.1CEA.KOSAKI.MOTOHIRO@jp.fujitsu.com> <87prlsjcjg.fsf@saeurebad.de> Message-Id: <20081023110723.1CF0.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Thu, 23 Oct 2008 11:10:16 +0900 (JST) Sender: owner-linux-mm@kvack.org Return-Path: To: Johannes Weiner Cc: kosaki.motohiro@jp.fujitsu.com, Andrew Morton , Rik van Riel , Peter Zijlstra , linux-mm@kvack.org List-ID: > >> Instead of re-acquiring the highly contented LRU lock on every single > >> page activation, deploy an extra pagevec to do page activation in > >> batch. > > > > Do you have any mesurement result? > > Not yet, sorry. > > Spinlocks are no-ops on my architecture, though, so the best I can come > up with is results from emulating an SMP machine, would that be okay? it's not ok.. if you can explain best mesurement way, I can mesure on 8 way machine :) (but, of cource, I should mesure your madv_sequence patch earlier) -- 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