From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id m9G6A0JH014875 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Thu, 16 Oct 2008 15:10:00 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 18F991B801E for ; Thu, 16 Oct 2008 15:10:00 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id E579D2DC015 for ; Thu, 16 Oct 2008 15:09:59 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id A82101DB8038 for ; Thu, 16 Oct 2008 15:09:59 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.249.87.104]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 5692D1DB803F for ; Thu, 16 Oct 2008 15:09:59 +0900 (JST) From: KOSAKI Motohiro Subject: Re: mm-more-likely-reclaim-madv_sequential-mappings.patch In-Reply-To: <20081016143830.582C.KOSAKI.MOTOHIRO@jp.fujitsu.com> References: <20081016102752.9886.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20081016143830.582C.KOSAKI.MOTOHIRO@jp.fujitsu.com> Message-Id: <20081016150627.582F.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Thu, 16 Oct 2008 15:09:58 +0900 (JST) Sender: owner-linux-mm@kvack.org Return-Path: To: Johannes Weiner Cc: kosaki.motohiro@jp.fujitsu.com, Andrew Morton , linux-mm@kvack.org List-ID: Johannes, > 2.6.27 mmotm-1010 > ============================================================== > mm_sync_madv_cp 6:14 6:02 (min:sec) > dbench throughput 12.1507 14.6273 (MB/s) > dbench latency 33046 21779 (ms) > > > So, throughput improvement is relativily a bit, but latency improvement is much. > Then, I think the patch can improve "larege file copy (e.g. backup operation) > attacks desktop latency" problem. That means, Tested-by: KOSAKI Motohiro Ack-by: KOSAKI Motohiro Thanks. -- 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