From owner-freebsd-stable@FreeBSD.ORG Tue May 29 07:09:32 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0AEC61065676; Tue, 29 May 2012 07:09:32 +0000 (UTC) (envelope-from dewayne.geraghty@heuristicsystems.com.au) Received: from nskntmtas05p.mx.bigpond.com (nskntmtas05p.mx.bigpond.com [61.9.168.149]) by mx1.freebsd.org (Postfix) with ESMTP id 7047A8FC08; Tue, 29 May 2012 07:09:31 +0000 (UTC) Received: from nskntcmgw08p ([61.9.169.168]) by nskntmtas05p.mx.bigpond.com with ESMTP id <20120529070929.BFIT24726.nskntmtas05p.mx.bigpond.com@nskntcmgw08p>; Tue, 29 May 2012 07:09:29 +0000 Received: from hermes.heuristicsystems.com.au ([58.172.112.105]) by nskntcmgw08p with BigPond Outbound id Fj9U1j00N2GVmci01j9V83; Tue, 29 May 2012 07:09:29 +0000 X-Authority-Analysis: v=2.0 cv=T/cOvo2Q c=1 sm=1 a=0GO/22z+lHYfckWJ4naYnw==:17 a=twTT4oUKOlYA:10 a=kj9zAlcOel0A:10 a=GHIR_BbyAAAA:8 a=lNKMvoqVF59USf-t1DEA:9 a=CjuIK1q_8ugA:10 a=0GO/22z+lHYfckWJ4naYnw==:117 Received: from white (white.hs [10.0.5.2]) (authenticated bits=0) by hermes.heuristicsystems.com.au (8.14.5/8.13.6) with ESMTP id q4T75du7094853 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NOT); Tue, 29 May 2012 17:05:40 +1000 (EST) (envelope-from dewayne.geraghty@heuristicsystems.com.au) From: "Dewayne Geraghty" To: "'Doug Barton'" , "'Randy Bush'" References: <4FC45139.70108@FreeBSD.org> Date: Tue, 29 May 2012 17:05:39 +1000 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <4FC45139.70108@FreeBSD.org> Thread-Index: Ac09YQIawcKN/839QHaYjcdoj2pl/QABchOA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: 'FreeBSD Stable' Subject: RE: clang tautology X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 May 2012 07:09:32 -0000 Good point Doug, I guess the choice between a clang 3.1 and gcc 4.2.1 world/kernel is pending a performance profile comparison. The performance comparison using specific applications (ports) indicates some improvement of gcc 4.6 over 4.2 and certainly gains when openMP is advantageous. Regards, Dewayne.