Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754217AbYKGObI (ORCPT ); Fri, 7 Nov 2008 09:31:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753461AbYKGOaJ (ORCPT ); Fri, 7 Nov 2008 09:30:09 -0500 Received: from g4t0015.houston.hp.com ([15.201.24.18]:43239 "EHLO g4t0015.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753733AbYKGOaB (ORCPT ); Fri, 7 Nov 2008 09:30:01 -0500 Message-ID: <491450E4.2080802@hp.com> Date: Fri, 07 Nov 2008 09:29:56 -0500 From: "Alan D. Brunelle" User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: Jens Axboe CC: Arnaldo Carvalho de Melo , Mathieu Desnoyers , Linux Kernel Mailing List Subject: Re: [PATCH][v3] blktrace: conversion to tracepoints References: <20081029120556.GD28123@ghostprotocols.net> <20081029131855.GC31673@kernel.dk> <20081029194323.GA25056@ghostprotocols.net> <20081030073134.GM31673@kernel.dk> In-Reply-To: <20081030073134.GM31673@kernel.dk> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1798 Lines: 54 > > I'll apply this for 2.6.29. I'm assuming you have tested this as well? > FYI: I tested this on a 16-way AMD x86_64 box (128GB RAM, a couple of Smart Array (CCISS) P800's). Running Jens' for-2.6.29 git tree versus a recent Linus 2.6.28-rc3 tree. I was doing kernel makes (10 passes for both kernels), and found that things worked just fine. All values below are in seconds: 2.6.28-rc3: Part Min Avg Max Dev -------- ------- ------- ------- ------- untar 17.996 22.565 23.522 1.690 mk-cfg 3.279 3.454 3.529 0.070 mk-kern 140.837 141.557 142.549 0.626 mk-clean 10.460 11.604 12.710 0.758 -------- ------- ------- ------- ------- Combd 172.941 179.180 181.600 2.470 ======== ======= ======= ======= ======= %sys 7.67% 7.78% 8.03% 0.114 Jens' origin/for-2.6.29: Part Min Avg Max Dev -------- ------- ------- ------- ------- untar 18.138 22.576 24.279 1.693 mk-cfg 3.270 3.483 3.751 0.118 mk-kern 141.290 142.115 142.666 0.439 mk-clean 8.263 9.609 10.211 0.624 -------- ------- ------- ------- ------- Combd 173.736 177.783 179.654 1.786 ======== ======= ======= ======= ======= %sys 7.77% 7.85% 8.01% 0.074 Not sure why the 'make clean' portion of the runs went noticeably better with the newer code, but in any event, I don't see much difference elsewhere, and for sure the blktrace portion of things worked correctly. [blktrace + blkparse + blkrawverify + btt all worked just fine out of the box.] Regards, Alan -- 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/