Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262099AbTKDXtQ (ORCPT ); Tue, 4 Nov 2003 18:49:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262106AbTKDXtQ (ORCPT ); Tue, 4 Nov 2003 18:49:16 -0500 Received: from cpe-24-221-190-179.ca.sprintbbd.net ([24.221.190.179]:24268 "EHLO myware.akkadia.org") by vger.kernel.org with ESMTP id S262099AbTKDXtO (ORCPT ); Tue, 4 Nov 2003 18:49:14 -0500 Message-ID: <3FA83ACC.5060700@redhat.com> Date: Tue, 04 Nov 2003 15:48:28 -0800 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925 Thunderbird/0.3 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linus Torvalds CC: "Bill Rugolsky Jr." , Paul Venezia , Kernel Mailing List Subject: Re: ext3 performance inconsistencies, 2.4/2.6 References: In-Reply-To: X-Enigmail-Version: 0.81.7.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1510 Lines: 50 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Linus Torvalds wrote: > Is the TLS stuff done through an extra dynamically loaded indirection or > something? This has nothing to do with TLS. The code currently used got to use the general libpthread locking code. This was, I think, the result of one of the last changes in the locking code where the libc side wasn't updated correctly. I've done this and this is what I see: drepper@ht 20031104-2$ time ./u > /dev/null real 0m1.272s user 0m1.270s sys 0m0.000s drepper@ht 20031104-2$ time LD_ASSUME_KERNEL=2.4.1 ./u > /dev/null real 0m0.316s user 0m0.320s sys 0m0.000s drepper@ht 20031104-2$ time LD_LIBRARY_PATH=. ./u > /dev/null real 0m0.207s user 0m0.210s sys 0m0.000s The first is the old nptl code, the second LinuxThreads, the third the current nptl code. - -- - --------------. ,-. 444 Castro Street Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA Red Hat `--' drepper at redhat.com `--------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQE/qDrM2ijCOnn/RHQRAnAyAJ48OxeRGWefxHMVImZMiuZ2YaueOwCgk+8A 9k3SC5sMLghNmlMmzKwWv/E= =UT6g -----END PGP SIGNATURE----- - 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/