Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753190AbXKRSCT (ORCPT ); Sun, 18 Nov 2007 13:02:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751311AbXKRSCJ (ORCPT ); Sun, 18 Nov 2007 13:02:09 -0500 Received: from thunk.org ([69.25.196.29]:50971 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751291AbXKRSCH (ORCPT ); Sun, 18 Nov 2007 13:02:07 -0500 Date: Sun, 18 Nov 2007 13:01:10 -0500 From: Theodore Tso To: Adrian Bunk Cc: Daniel Barkalow , Romano Giannetti , Benoit Boissinot , Mark Lord , Ingo Molnar , Andrew Morton , David Miller , protasnb@gmail.com, linux-kernel@vger.kernel.org Subject: Re: [BUG] New Kernel Bugs Message-ID: <20071118180110.GA7037@thunk.org> Mail-Followup-To: Theodore Tso , Adrian Bunk , Daniel Barkalow , Romano Giannetti , Benoit Boissinot , Mark Lord , Ingo Molnar , Andrew Morton , David Miller , protasnb@gmail.com, linux-kernel@vger.kernel.org References: <4739AFE0.20705@rtr.ca> <40f323d00711130752k19cab8eauc3456721274b3267@mail.gmail.com> <20071113171356.GA25824@thunk.org> <20071115153057.GE17180@thunk.org> <1195201202.13688.10.camel@localhost> <20071116194617.GI11339@thunk.org> <20071117122010.GC4250@stusta.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071117122010.GC4250@stusta.de> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 932 Lines: 22 On Sat, Nov 17, 2007 at 01:20:10PM +0100, Adrian Bunk wrote: > > But a bisect takes around 7 compiles. > >... > > I don't understand that number. > > The common case are regressions in -rc1, and a bisection of > at about 7000 commits takes around 13 compiles. Worst case it would take 13. In practice I've seen less. Part of it is I suspect that I'm starting with something more recent than the previous 2.6.23, but rather a daily -git13 or -git14 tree. Part of it may be because git can sometimes be more efficient by cutting off entire branches with trail builds, since git history isn't completely linear, but rather pulls of various branches together. - Ted - 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/