From owner-freebsd-hackers Tue Dec 19 19:32:51 2000 From owner-freebsd-hackers@FreeBSD.ORG Tue Dec 19 19:32:49 2000 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from gw.nectar.com (gw.nectar.com [208.42.49.153]) by hub.freebsd.org (Postfix) with ESMTP id 286F937B400 for ; Tue, 19 Dec 2000 19:32:49 -0800 (PST) Received: by gw.nectar.com (Postfix, from userid 1001) id 25B94193EB; Tue, 19 Dec 2000 21:32:48 -0600 (CST) Date: Tue, 19 Dec 2000 21:32:48 -0600 From: "Jacques A. Vidrine" To: Peter Seebach Cc: freebsd-hackers@freebsd.org Subject: Re: Optimizations (was: Why not another style thread? (was Re: cvs commit: src/lib/libc/gen getgrent.c)) Message-ID: <20001219213247.A74830@spawn.nectar.com> Mail-Followup-To: "Jacques A. Vidrine" , Peter Seebach , freebsd-hackers@freebsd.org References: <20001220110348.P43017@wantadilla.lemis.com> <200012200036.SAA04774@guild.plethora.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200012200036.SAA04774@guild.plethora.net>; from seebs@plethora.net on Tue, Dec 19, 2000 at 06:36:06PM -0600 X-Url: http://www.nectar.com/ Sender: nectar@nectar.com Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Dec 19, 2000 at 06:36:06PM -0600, Peter Seebach wrote: > In message <20001220110348.P43017@wantadilla.lemis.com>, Greg Lehey writes: > >In which processors is a function call anywhere near as cheap as a > >conditional local branch? > > Doesn't PPC have some cases where a leaf function is basically free? Maybe, but free() is not a leaf function. -- Jacques Vidrine / n@nectar.com / jvidrine@verio.net / nectar@FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message