From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH, RFC] Fix build problems related to profile-directed optimization Date: Fri, 3 Feb 2012 10:39:21 -0800 Message-ID: <20120203183921.GA29944@tassilo.jf.intel.com> References: <1328209417-8206-1-git-send-email-tytso@mit.edu> <7vvcnpuhpo.fsf@alter.siamese.dyndns.org> <20120202201226.GA1032@thunk.org> <7vvcnou40u.fsf@alter.siamese.dyndns.org> <20120203020743.GE1032@thunk.org> <7vr4ycsbga.fsf@alter.siamese.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Ted Ts'o , git@vger.kernel.org, Clemens Buchacher To: Junio C Hamano X-From: git-owner@vger.kernel.org Fri Feb 03 19:39:48 2012 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RtO30-0003AB-PX for gcvg-git-2@plane.gmane.org; Fri, 03 Feb 2012 19:39:47 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757448Ab2BCSjm (ORCPT ); Fri, 3 Feb 2012 13:39:42 -0500 Received: from mga02.intel.com ([134.134.136.20]:49326 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757008Ab2BCSjl (ORCPT ); Fri, 3 Feb 2012 13:39:41 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 03 Feb 2012 10:39:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,352,1309762800"; d="scan'208";a="103640559" Received: from tassilo.jf.intel.com ([10.7.201.151]) by orsmga001.jf.intel.com with ESMTP; 03 Feb 2012 10:39:40 -0800 Received: by tassilo.jf.intel.com (Postfix, from userid 501) id 0EA08242780; Fri, 3 Feb 2012 10:39:21 -0800 (PST) Content-Disposition: inline In-Reply-To: <7vr4ycsbga.fsf@alter.siamese.dyndns.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Thanks everyone for improving this. I should add that any improvements will depend on your compiler version. I would also expect better numbers when combined with LTO in gcc 4.7, but haven't tried so far. BTW it would be really nice to figure out a subset of the test suite that runs faster and gives similar speedup like the full one. -Andi -- ak@linux.intel.com -- Speaking for myself only