From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753359AbZH0WLA (ORCPT ); Thu, 27 Aug 2009 18:11:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753271AbZH0WK5 (ORCPT ); Thu, 27 Aug 2009 18:10:57 -0400 Received: from mail-qy0-f179.google.com ([209.85.221.179]:44027 "EHLO mail-qy0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752714AbZH0WK5 (ORCPT ); Thu, 27 Aug 2009 18:10:57 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type; b=lIRIunLlEVgLs8yGCLxdn6e8sDvqrciuq+COi5AHMrpfn8u6WVZBHv7wJx1Tgo76Qd ULL6FlEE5mxXkGWrIWemqWV4pOlO2vxsIAjw64H6b29yO5dmxkTa2i40z2z5c99cJy+g 6vjT2+SLHohZCy94n+PzEDbgdnj6ZSrchg5p4= Message-ID: <4A97046D.8010008@gmail.com> Date: Thu, 27 Aug 2009 18:10:53 -0400 From: Gregory Haskins User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) MIME-Version: 1.0 To: Steven Rostedt CC: Ingo Molnar , =?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?= , "linux-kernel@vger.kernel.org" Subject: Re: FTRACE: regression in 31-rc7 References: <4A96B55C.10001@gmail.com> <20090827164007.GA30679@elte.hu> <4A96BB40.1070306@gmail.com> <4A96BD50.9040204@gmail.com> In-Reply-To: X-Enigmail-Version: 0.96.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig4F8110CC1F32B3A6B7AE21A8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig4F8110CC1F32B3A6B7AE21A8 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Steven Rostedt wrote: > On Thu, 27 Aug 2009, Gregory Haskins wrote: >=20 >> Hi Steve, >> >> Steven Rostedt wrote: >> instrumented for some reason. >>> Hmm, so you think something with the modules broke? I can test that o= ut=20 >>> here. >> Thats my (admittedly fairly ignorant) theory based on the limited data= >> samples I have in front of me. :) >> >> If I get a chance later, I will try to do something more scientific, o= r >> at least a bisect. >=20 > I just did this: Sorry, was away from the computer for a while... In light of these reports, I suspect this may either be some kind of operator error, or a bad build or something. I will retry -rc7 with a clean build later and see if it still reproduces. Until then, apologies for the noise. Kind Regards, -Greg >=20 > # uname -r > 2.6.31-rc7 > # echo :mod:ext3 > set_ftrace_filter > # echo function_graph > current_tracer > # cat trace > # tracer: function_graph > # > # CPU DURATION FUNCTION CALLS > # | | | | | | | > 1) 6.928 us | ext3_permission(); > 1) 1.234 us | ext3_permission(); > ------------------------------------------ > 1) gdm-bin-3477 =3D> pcscd-2951 =20 > ------------------------------------------ >=20 > 1) 1.306 us | ext3_permission(); > 1) 1.314 us | ext3_permission(); > 1) 1.244 us | ext3_permission(); > 1) 1.364 us | ext3_permission(); > 1) 1.251 us | ext3_permission(); > 1) 1.473 us | ext3_permission(); > 1) 1.306 us | ext3_permission(); > 1) 1.401 us | ext3_permission(); > 1) 1.243 us | ext3_permission(); > 1) 1.301 us | ext3_permission(); > 1) 1.439 us | ext3_permission(); > 1) 1.239 us | ext3_permission(); > 1) 1.331 us | ext3_permission(); > 1) 1.423 us | ext3_permission(); > 1) 1.243 us | ext3_permission(); > 1) 1.321 us | ext3_permission(); > ------------------------------------------ > 1) pcscd-2951 =3D> gdm-bin-3477=20 > ------------------------------------------ >=20 > 1) 2.567 us | ext3_permission(); > 1) 1.139 us | ext3_permission(); > 1) 2.329 us | ext3_permission(); > 1) 1.246 us | ext3_permission(); > 1) 1.321 us | ext3_permission(); > 1) 0.989 us | ext3_permission(); > 1) 1.261 us | ext3_permission(); > 1) 1.209 us | ext3_permission(); > 1) 1.221 us | ext3_permission(); > 1) 0.968 us | ext3_permission(); > 1) 2.319 us | ext3_permission(); > 1) 1.221 us | ext3_permission(); > 1) 2.199 us | ext3_permission(); > 1) 1.269 us | ext3_permission(); > ------------------------------------------ > 1) gdm-bin-3477 =3D> bash-3198 =20 > ------------------------------------------ >=20 > 1) 2.852 us | ext3_permission(); > 1) | ext3_readdir() { > 1) 1.249 us | free_rb_tree_fname(); > 1) | ext3_htree_fill_tree() { > 1) | htree_dirblock_to_tree() { > 1) | ext3_bread() { > 1) | ext3_getblk() { > 1) | ext3_get_blocks_handle() { > 1) 1.046 us | ext3_block_to_path(); >=20 >=20 > This is with the latest Linus git: >=20 > commit 1e23502cc57cef33455ac7cb9111e3c6d991a894 > Merge: e99b1f2... 3161e45... > Author: Linus Torvalds > Date: Wed Aug 26 20:54:48 2009 -0700 >=20 > -- Steve >=20 --------------enig4F8110CC1F32B3A6B7AE21A8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.11 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqXBG4ACgkQP5K2CMvXmqHz0ACfXVrX/BXCJcUNBGxGtPVx7sFk qJ8AnAwfBKA3Fkjys93c8spBvY+XY8GY =WqeD -----END PGP SIGNATURE----- --------------enig4F8110CC1F32B3A6B7AE21A8--