Date: Wed, 13 Jun 2007 19:52:46 -0500 (CDT) From: Stephen Montgomery-Smith <stephen@math.missouri.edu> To: youshi10@u.washington.edu Cc: hackers@freebsd.org, Tim Kientzle <kientzle@freebsd.org> Subject: Re: Using shell commands versus C equivalents Message-ID: <20070613195143.G3312@math.missouri.edu> In-Reply-To: <Pine.LNX.4.43.0706131421010.18410@hymn01.u.washington.edu> References: <Pine.LNX.4.43.0706131421010.18410@hymn01.u.washington.edu>
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On Wed, 13 Jun 2007, youshi10@u.washington.edu wrote: > PS I'm looking at pkg_install and pkg_version mostly, but I'll be looking > into the other package utilities closely in the next couple weeks, evaluating > what approaches I should take in solving some bottlenecks with installing > packages and ports. My goals are up on > <http://wiki.freebsd.org/GarrettCooper>, and will be modified soon. Since you are interested in speeding up the pkg_* stuff, I thought I would bring these to your attention (speed ups to the pkg_create and port registration processes, not quite what you are doing, but related). http://www.freebsd.org/cgi/query-pr.cgi?pr=112765 http://www.freebsd.org/cgi/query-pr.cgi?pr=112630 Let me also wish you good luck in your speed improvements. I was rather encouraged by these two, but all my future searches proved somewhat negative. In particular I looked rather hard at trying to speed up "make" (required for pkg_version when it calls "make -V PKGNAME" multiple times). I can tell you that in that instance, replacing linear lists by berkeley DB made no difference at all - it was very disappointing. In short, you really want to do a lot of profiling and see where the speed bottlenecks really are before writing lots of code. Stephen
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