Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754594AbZJETAs (ORCPT ); Mon, 5 Oct 2009 15:00:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754508AbZJETAs (ORCPT ); Mon, 5 Oct 2009 15:00:48 -0400 Received: from eagle.jhcloos.com ([207.210.242.212]:1563 "EHLO eagle.jhcloos.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754465AbZJETAr (ORCPT ); Mon, 5 Oct 2009 15:00:47 -0400 From: James Cloos To: Linux Kernel Mailing List Cc: Linus Torvalds Subject: Re: Linux 2.6.32-rc3 In-Reply-To: (Linus Torvalds's message of "Sun, 4 Oct 2009 17:44:43 -0700 (PDT)") References: User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.1.50 (gnu/linux) Face: iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABHNCSVQICAgIfAhkiAAAAI1J REFUOE+lU9ESgCAIg64P1y+ngUdxhl5H8wFbbM0OmUiEhKkCYaZThXCo6KE5sCbA1DDX3genvO4d eBQgEMaM5qy6uWk4SfBYfdu9jvBN9nSVDOKRtwb+I3epboOsOX5pZbJNsBJFvmQQ05YMfieIBnYX FK2N6dOawd97r/e8RjkTLzmMsiVgrAoEugtviCM3v2WzjgAAAABJRU5ErkJggg== Copyright: Copyright 2009 James Cloos OpenPGP: ED7DAEA6; url=http://jhcloos.com/public_key/0xED7DAEA6.asc OpenPGP-Fingerprint: E9E9 F828 61A4 6EA9 0F2B 63E7 997A 9F17 ED7D AEA6 Date: Mon, 05 Oct 2009 14:55:40 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Hashcash: 1:29:091005:linux-kernel@vger.kernel.org::0g+NSoxKVxLJpTMA:00000000000000000000000000000000qcRiI X-Hashcash: 1:29:091005:torvalds@linux-foundation.org::y2FI1dX9nvosLcO1:0000000000000000000000000000000flssJ Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 741 Lines: 12 I wrote earlier, in a reply on the Poor desktop responsiveness with background I/O-operations thread, that sometime between .30-rc6 and the .31 tag all of the recent improvements in perceived performance has been lost. I'm happy to report that as of the cmpexch64 fix, that regression is gone. Performance under load -- and particularly with significant paging -- shows a vast improvement (on my aging, 32-bit laptop). -JimC -- James Cloos OpenPGP: 1024D/ED7DAEA6 -- 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/