Date: Wed, 3 Aug 2011 07:09:07 +1000 From: Peter Jeremy <peterjeremy@acm.org> To: freebsd-ports@FreeBSD.org Subject: Re: UPDATING 20110730 Message-ID: <20110802210907.GB78870@server.vk2pj.dyndns.org> In-Reply-To: <4E367999.8000906@FreeBSD.org> References: <20110801085135.GA45113@lpthe.jussieu.fr> <4E367999.8000906@FreeBSD.org>
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--OwLcNYc0lM97+oe1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2011-Aug-01 19:21:21 +0200, Michel Talon <talon@lpthe.jussieu.fr> wrote: >This is unfortunately impossible because the ports system is organized >around a make logic and the relevant dependency variables are only >obtained through running make on each ports Makefile *in the context* of >the gigantic makefiles (bsd.port.mk, etc) which are included. We've had this discussion before but there is plenty of scope for someone with copious free time to optimise this. Options include a new tool that handles the "easy" cases without needing to fully parse all of bsd.*.mk (and knows to punt the cases it can't handle to make) and/or pre-precessing bsd.*.mk to speed up their loading. Note that about 1/3 of bsd.*.mk is comments. On 2011-Aug-02 22:12:48 +0300, Andriy Gapon <avg@FreeBSD.org> wrote: >I will repeat myself: currently portmaster's performance relies on >the fact that certain often used data originating from disk is >actually cached in memory by the OS. Typically performance-conscious >applications explicitly pull such data into an application cache. An alternative viewpoint is that this is wasteful because data is then double-buffered. An alternative view is that the default ZFS configuration is sub-optimal and should be fixed - rather than insisting that every tool that accesses more than a handful of files should do its own caching. (And, reading zfs-discuss, avg@ is far from the only person to have been bitten by the ZFS metadata limit). --=20 Peter Jeremy --OwLcNYc0lM97+oe1 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (FreeBSD) iEYEARECAAYFAk44Z3MACgkQ/opHv/APuIc/RgCfd/2ji7kITlbWdNZoRlB9i5Lb RwsAnR3uvCYDu6/dmtwDhtqbFbiEcd/+ =BDMI -----END PGP SIGNATURE----- --OwLcNYc0lM97+oe1--
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