Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 15 Mar 2003 06:48:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 15 Mar 2003 06:48:32 -0500 Received: from holomorphy.com ([66.224.33.161]:35537 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Sat, 15 Mar 2003 06:48:30 -0500 Date: Sat, 15 Mar 2003 03:58:56 -0800 From: William Lee Irwin III To: Andrew Morton , bzzz@tmi.comex.ru, adilger@clusterfs.com, linux-kernel@vger.kernel.org, ext2-devel@lists.sourceforge.net, hawkes@sgi.com, hannal@us.ibm.com Subject: Re: [PATCH] concurrent block allocation for ext2 against 2.5.64 Message-ID: <20030315115856.GU20188@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Andrew Morton , bzzz@tmi.comex.ru, adilger@clusterfs.com, linux-kernel@vger.kernel.org, ext2-devel@lists.sourceforge.net, hawkes@sgi.com, hannal@us.ibm.com References: <20030313165641.H12806@schatzie.adilger.int> <20030315043744.GM1399@holomorphy.com> <20030314205455.49f834c2.akpm@digeo.com> <20030315054910.GN20188@holomorphy.com> <20030315062025.GP20188@holomorphy.com> <20030314224413.6a1fc39c.akpm@digeo.com> <20030315070511.GQ20188@holomorphy.com> <20030315082431.GG5891@holomorphy.com> <20030315094758.GT20188@holomorphy.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="0eh6TmSyL6TZE2Uz" Content-Disposition: inline In-Reply-To: <20030315094758.GT20188@holomorphy.com> User-Agent: Mutt/1.3.28i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9013 Lines: 143 --0eh6TmSyL6TZE2Uz Content-Type: text/plain; charset=us-ascii Content-Description: brief message Content-Disposition: inline On Sat, Mar 15, 2003 at 12:24:31AM -0800, William Lee Irwin III wrote: >> Next pass involves lockmeter: On Sat, Mar 15, 2003 at 01:47:58AM -0800, William Lee Irwin III wrote: > Throughput 39.2014 MB/sec 128 procs > dbench 128 142.51s user 10828.91s system 964% cpu 18:57.88 total > That's an 83% reduction in throughput from applying lockmeter. > Um, somebody should look into this. The thing is a bloody doorstop: Okay, dump_stack() every once in a while when we schedule() in down(). 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