Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753814Ab1DSRnT (ORCPT ); Tue, 19 Apr 2011 13:43:19 -0400 Received: from mx1.fusionio.com ([64.244.102.30]:33528 "EHLO mx1.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752480Ab1DSRnR (ORCPT ); Tue, 19 Apr 2011 13:43:17 -0400 X-ASG-Debug-ID: 1303234996-03d6a569fbdc5b0001-xx1T2L X-Barracuda-Envelope-From: JAxboe@fusionio.com Message-ID: <4DADC9B3.6030208@fusionio.com> Date: Tue, 19 Apr 2011 19:43:15 +0200 From: Jens Axboe MIME-Version: 1.0 To: Bart Van Assche CC: Linus Torvalds , "Rafael J. Wysocki" , Linux Kernel Mailing List , Kernel Testers List , Maciej Rutecki , Florian Mickler , Neil Brown , David Dillow Subject: Re: [Bug #32982] Kernel locks up a few minutes after boot References: <_H4l51C1wXN.A.yDC.yGuqNB@chimera> <4DAC2429.5000105@fusionio.com> <4DAC82E6.3020809@fusionio.com> <4DAD5156.2050300@fusionio.com> <4DAD6EF2.5070405@fusionio.com> X-ASG-Orig-Subj: Re: [Bug #32982] Kernel locks up a few minutes after boot In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail1.int.fusionio.com[10.101.1.21] X-Barracuda-Start-Time: 1303234996 X-Barracuda-URL: http://10.101.1.180:8000/cgi-mod/mark.cgi X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.61329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 724 Lines: 18 On 2011-04-19 18:13, Bart Van Assche wrote: > The same test with an initiator running 2.6.39-rc4 + > git://git.kernel.dk/linux-2.6-block.git for-linus + the above patch > yields about 155.000 IOPS on my test setup, or the same performance as > with 2.6.38.3. I'm running the above patch through an I/O stress test > now. OK, so parity, that's good. With the above patch, I can take a single device from ~400K IOPS on 2.6.38 to ~440K IOPS on 2.6.39-rc4+patches. -- Jens Axboe -- 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/