Date: Mon, 28 May 2007 11:13:53 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: Mike Meyer <mwm-keyword-freebsdhackers2.e313df@mired.org> Cc: ports@freebsd.org, Hartmut Brandt <hartmut.brandt@dlr.de>, hackers@freebsd.org Subject: Re: Looking for speed increases in "make index" and pkg_version for ports Message-ID: <465B1BE1.7010208@u.washington.edu> In-Reply-To: <18011.6019.436391.128372@bhuda.mired.org> References: <4659EF80.70100@math.missouri.edu> <465AB421.10802@dlr.de> <18011.6019.436391.128372@bhuda.mired.org>
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Mike Meyer wrote: > In <465AB421.10802@dlr.de>, Hartmut Brandt <hartmut.brandt@dlr.de> typed: >> 1. make and its sub-makes for a) reading the file; b) parsing the file >> (note that .if and .for processing is done while parsing); c) processing >> targets. > > Make and submakes have been gone over already. See <URL: > http://miller.emu.id.au/pmiller/books/rmch/ >. > > I'm not sure it can be applied to the ports tree, though. I haven't > looked into it, but recalled this paper when you mentioned measuring > makes and sub-makes. > > <mike Reducing the number of variables will certainly cut down on the amount of overhead in the make/submake context switches by a long shot. Maybe someone should consider running a 'pre-make' using the .mk files, find the variables of interest for all particular sub-ports, and then carry on the 'root make', i.e. make process in each port directory, with just the variables of interest. -Garrett
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