Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 15 Aug 2002 19:33:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 15 Aug 2002 19:33:08 -0400 Received: from holomorphy.com ([66.224.33.161]:37820 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Thu, 15 Aug 2002 19:33:07 -0400 Date: Thu, 15 Aug 2002 16:35:25 -0700 From: William Lee Irwin III To: linux-kernel@vger.kernel.org Subject: Re: 2.5.31 kmap_atomic copy_*_user benefits Message-ID: <20020815233525.GW15685@holomorphy.com> Mail-Followup-To: William Lee Irwin III , linux-kernel@vger.kernel.org References: <20020815232126.GR15685@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline In-Reply-To: <20020815232126.GR15685@holomorphy.com> User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 741 Lines: 20 On Thu, Aug 15, 2002 at 04:21:26PM -0700, William Lee Irwin III wrote: > With and without kmap_atomic() -based copy_*_user() patches from akpm. > Taken on a 16x/16GB box. > Take 1: total throughput: > before: > Throughput 32.3019 MB/sec (NB=40.3774 MB/sec 323.019 MBit/sec) 512 procs > after: > Throughput 46.9837 MB/sec (NB=58.7296 MB/sec 469.837 MBit/sec) 512 procs > In the follow-ups I'll include oprofile numbers for each and vmstat logs. doh! the workload was dbench 512 Cheers, Bill - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/