From owner-freebsd-performance@FreeBSD.ORG Wed Feb 13 15:46:10 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0620916A475; Wed, 13 Feb 2008 15:46:10 +0000 (UTC) (envelope-from brooks@lor.one-eyed-alien.net) Received: from lor.one-eyed-alien.net (cl-162.ewr-01.us.sixxs.net [IPv6:2001:4830:1200:a1::2]) by mx1.freebsd.org (Postfix) with ESMTP id 851B213C46A; Wed, 13 Feb 2008 15:46:09 +0000 (UTC) (envelope-from brooks@lor.one-eyed-alien.net) Received: from lor.one-eyed-alien.net (localhost [127.0.0.1]) by lor.one-eyed-alien.net (8.14.1/8.13.8) with ESMTP id m1DFk5Pa006471; Wed, 13 Feb 2008 09:46:05 -0600 (CST) (envelope-from brooks@lor.one-eyed-alien.net) Received: (from brooks@localhost) by lor.one-eyed-alien.net (8.14.1/8.13.8/Submit) id m1DFk52I006470; Wed, 13 Feb 2008 09:46:05 -0600 (CST) (envelope-from brooks) Date: Wed, 13 Feb 2008 09:46:05 -0600 From: Brooks Davis To: Erik Cederstrand Message-ID: <20080213154605.GA96732@lor.one-eyed-alien.net> References: <4796C717.9000507@cederstrand.dk> <20080123193400.N63024@fledge.watson.org> <4797A245.7080202@cederstrand.dk> <20080123202433.E63024@fledge.watson.org> <4797A802.8060509@FreeBSD.org> <47A0BFE7.4070708@cederstrand.dk> <20080130190000.GA18333@lor.one-eyed-alien.net> <47AC15A5.5020009@cederstrand.dk> <20080208151756.GA35423@lor.one-eyed-alien.net> <47B302B2.30607@cederstrand.dk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="bp/iNruPH9dso1Pn" Content-Disposition: inline In-Reply-To: <47B302B2.30607@cederstrand.dk> User-Agent: Mutt/1.5.16 (2007-06-09) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (lor.one-eyed-alien.net [127.0.0.1]); Wed, 13 Feb 2008 09:46:05 -0600 (CST) Cc: freebsd-performance@freebsd.org, Brooks Davis , kris@freebsd.org Subject: Re: Performance Tracker project update X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Feb 2008 15:46:10 -0000 --bp/iNruPH9dso1Pn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 13, 2008 at 03:46:10PM +0100, Erik Cederstrand wrote: > Brooks Davis skrev: >> On Fri, Feb 08, 2008 at 09:41:09AM +0100, Erik Cederstrand wrote: >>> I finally got around to testing this, and with a combination of mtree= =20 >>> comparing md5 hashes, bsdiff compacting changed files and hardlinking= =20 >>> unchanged files I get a reduction in size from 256MB to 10MB. Pretty=20 >>> good, and the whole operation only takes a few minutes. >> Cool! >>> I have one peculiarity, though. I install python2.5 into the directory= =20 >>> containing the build, and even though the python version has not change= d,=20 >>> I still get mismatching md5 sums on every .pyo and .pyc file. Any=20 >>> thoughts on this? >> I'm not a python guru by any means, but I think .pyc files probably have= =20 >> data >> about the .py they are generated from because there's some sort of >> auto-generation available. It may be possible to not store them at all= =20 >> and >> just generate them before you use them or add some magic build flags to= =20 >> cause >> them to store some sort of cooked values. I'm not sure where the .pyo= =20 >> files >> come from. >=20 > As suggested in other posts, deleting .pyo and .pyc files gets me down to= =20 > 6MB. Static libraries (.a files) in /usr/lib and /usr/local/lib still hav= e=20 > mismatching MD5 sums even though no source code change warrants this. Can= I=20 > do anything about that? Are static libraries even needed anymore? I'd suggest checking with cperciva@ about those for freebsd-update. Static libs are mostly not needed these days, but some are. -- Brooks --bp/iNruPH9dso1Pn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFHsxC8XY6L6fI4GtQRAqAyAKDWL+8WM08mt69OcctA/AX7DGW9BwCgr9J/ iEO1gygtylg9ngPqDlNod8w= =NSSh -----END PGP SIGNATURE----- --bp/iNruPH9dso1Pn--