From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH v3 0/3] automatically skip away from broken commits Date: Tue, 09 Jun 2009 11:42:37 -0700 Message-ID: <4A2EAD1D.7010201@zytor.com> References: <20090606043853.4031.78284.chriscool@tuxfamily.org> <7vskidcf9s.fsf@alter.siamese.dyndns.org> <200906070932.36913.chriscool@tuxfamily.org> <4A2CAA56.1030707@zytor.com> <7vws7n6vcf.fsf@alter.siamese.dyndns.org> <4A2D337C.70203@zytor.com> <7vzlcixwue.fsf@alter.siamese.dyndns.org> <4A2E7EEC.2050807@zytor.com> <7vljo1mf09.fsf@alter.siamese.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Christian Couder , Christian Couder , git@vger.kernel.org, Sam Vilain , Ingo Molnar To: Junio C Hamano X-From: git-owner@vger.kernel.org Tue Jun 09 20:49:44 2009 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1ME6OF-0005C0-QG for gcvg-git-2@gmane.org; Tue, 09 Jun 2009 20:49:44 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756732AbZFIStL (ORCPT ); Tue, 9 Jun 2009 14:49:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753528AbZFIStK (ORCPT ); Tue, 9 Jun 2009 14:49:10 -0400 Received: from terminus.zytor.com ([198.137.202.10]:54531 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753336AbZFIStJ (ORCPT ); Tue, 9 Jun 2009 14:49:09 -0400 Received: from anacreon.sc.intel.com (hpa@localhost [127.0.0.1]) (authenticated bits=0) by terminus.zytor.com (8.14.3/8.14.1) with ESMTP id n59Igbcj021148 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 9 Jun 2009 11:42:38 -0700 User-Agent: Thunderbird 2.0.0.21 (X11/20090320) In-Reply-To: <7vljo1mf09.fsf@alter.siamese.dyndns.org> X-Virus-Scanned: ClamAV 0.94.2/9445/Tue Jun 9 07:42:26 2009 on terminus.zytor.com X-Virus-Status: Clean Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Junio C Hamano wrote: > "H. Peter Anvin" writes: > >> My main objection to the "skip in goodness space" is exactly the same as >> Junio's... it doesn't really buy you what it claims to sell. > > It is no worse than the original "pick the next best in goodness space"; > neither try to avoid the ones close to untestable ones. > Well, it's certainly better than "next best in goodness space", which is provably pessimal in many common cases. > So as long as it does not claim "we intelligently try to skip away from > untestable ones", I am actually Ok with Christian's patch. It might do > worse than the random walk in pathological cases, but I suspect not by a > big margin. -hpa