From owner-freebsd-current@FreeBSD.ORG Tue Nov 25 21:27:09 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 420C816A4CE for ; Tue, 25 Nov 2003 21:27:09 -0800 (PST) Received: from basement.kutulu.org (pcp03610121pcs.longhl01.md.comcast.net [68.49.239.235]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3644743FD7 for ; Tue, 25 Nov 2003 21:27:08 -0800 (PST) (envelope-from kutulu@kutulu.org) Received: from wombat.localnet (wombat.localnet [192.168.69.3]) by basement.kutulu.org (Postfix) with ESMTP id C6419A904; Wed, 26 Nov 2003 00:27:07 -0500 (EST) Received: by wombat.localnet (Postfix, from userid 1001) id B7220B855; Wed, 26 Nov 2003 00:26:26 -0500 (EST) Date: Wed, 26 Nov 2003 00:26:26 -0500 From: Michael Edenfield To: "M. Warner Losh" Message-ID: <20031126052626.GI15294@wombat.localnet> Mail-Followup-To: "M. Warner Losh" , boyd@insultant.net, freebsd-current@freebsd.org References: <20031125012208.GD46761@dan.emsphone.com> <200311251214.23290.doconnor@gsoft.com.au> <00a701c3b33c$f798c5e0$b9844051@insultant.net> <20031125.100653.28845083.imp@bsdimp.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="WHz+neNWvhIGAO8A" Content-Disposition: inline In-Reply-To: <20031125.100653.28845083.imp@bsdimp.com> X-Mailer: Mutt http://www.mutt.org/ X-Accept-Language: en X-PGP-Key: http://www.kutulu.org/pgp/kutulu.asc X-PGP-Fingerprint: 1CE0 3C31 7013 D529 406D 37DC 09CC CD84 A46C 878F User-Agent: Mutt/1.5.5.1i cc: boyd@insultant.net cc: freebsd-current@freebsd.org Subject: Re: 40% slowdown with dynamic /bin/sh X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Nov 2003 05:27:09 -0000 --WHz+neNWvhIGAO8A Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * M. Warner Losh [031125 12:07]: > In message: <00a701c3b33c$f798c5e0$b9844051@insultant.net> > "boyd, rounin" writes: > : i see that there some doubt about whether running lots of > : shell scripts ever happens. what happens when you > : use make? lots of shells get run and they run small > : (one line?) scripts. >=20 > make buildworld slows down < 1% when you switch from static /bin/sh to > dynamic. I'm all for dynamic / and dynamic /bin/sh, but this doesn't even come close to what I observed on my systems. I see anywhere from 15% to 20% slowdown in buildworld, depending on how bad my hardware already is. I posted my most recent numbers earlier. It's difficult to get lots of these numbers, unfortunately, because it takes a good 6-8 hours just to complete one build. But the numbers are fairly consistant across the different degrees of old crappy hardware I have. -Mike --WHz+neNWvhIGAO8A Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/xDmCCczNhKRsh48RAm5vAKDEv0AVOdckj0NSdw+y2eaY4bMczwCfRFQR KIoRtUJOEIeMSkOt70qICos= =l9Eo -----END PGP SIGNATURE----- --WHz+neNWvhIGAO8A--