Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752453Ab2BVNe3 (ORCPT ); Wed, 22 Feb 2012 08:34:29 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:43664 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751186Ab2BVNe1 (ORCPT ); Wed, 22 Feb 2012 08:34:27 -0500 Date: Wed, 22 Feb 2012 14:34:05 +0100 From: Ingo Molnar To: Steven Rostedt Cc: "H. Peter Anvin" , Jason Baron , a.p.zijlstra@chello.nl, mathieu.desnoyers@efficios.com, davem@davemloft.net, ddaney.cavm@gmail.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups + docs Message-ID: <20120222133404.GA14085@elte.hu> References: <4F43F9F0.4000605@zytor.com> <20120222065016.GA16923@elte.hu> <4F44934B.2000808@zytor.com> <20120222072538.GA17291@elte.hu> <4F449ACF.3040807@zytor.com> <20120222074839.GA24890@elte.hu> <20120222080659.GA25318@elte.hu> <1329916920.25686.79.camel@gandalf.stny.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1329916920.25686.79.camel@gandalf.stny.rr.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1179 Lines: 35 * Steven Rostedt wrote: > I like the blue shed, but anyway... > > On Wed, 2012-02-22 at 09:06 +0100, Ingo Molnar wrote: > > * H. Peter Anvin wrote: > > > > > Not arguing that, but the static aspect is still key... or > > > people will read it as another version of likely/unlikely. > > > > They can *read* it as such, that as is very much intentional! > > I mentioned this thread on irc and the first comment I received was: > > "is that a new attempt at trying to guide the compiler?" It essentially is, implemented partly via compiler help, combined with runtime code patching, as an extended run-time arm of the compiler in essence, to make out of line slowpaths even cheaper to have around - to make the fast-path even faster. > I personally find the very_unlikely() confusing, but then > again I like the blue shed over the pink one. Confusing in what way? Thanks, Ingo -- 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/