Date: Mon, 3 Jun 2002 17:42:46 -0400 From: Chris Pepper <pepper@reppep.com> To: freebsd-questions@freebsd.org Subject: make -j4 becoming default? Message-ID: <p05111a16b9218b533fc1@[129.85.219.160]>
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<http://www.freebsd.org/handbook/makeworld.html>; recommends -j4 for "make buildworld". I've tried using it with various ports, and it works with some, but prevents others (so far, bind9, net-snmp, and imap-uw) from building. Obviously, I'd like to use -j4 wherever possible, and it's suboptimal to try everything multi-threaded, then sometimes fail and manually fall back to single-threaded. Even worse, I usually forget -j4 for thread-safe builds, so I waste time unnecessarily. Are there any plans to allow a default -j setting, and identify certain packages as requiring single-threaded making? One possibility that's occurred to me is to set MAKE_THREADS=4 and leave MAKE_THREADED unset in /etc/defaults/make.conf. Multi-threadable Makefiles, including /usr/src/Makefile, could set MAKE_THREADED="YES", and single-threaded Makefiles (/usr/ports/Makefile, to start) could set MAKE_THREADED="NO". Then the make command could be enhanced to set -j from MAKE_THREADS if MAKE_THREADED is YES. Are there gaping holes in this idea? Is there a better method waiting in the wings? Thanks, Chris Pepper -- Chris Pepper: <http://www.reppep.com/~pepper/>; Rockefeller University: <http://www.rockefeller.edu/>; To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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