Date: Thu, 23 Nov 2006 23:20:35 +0000 From: John Birrell <jb@what-creek.com> To: arch@freebsd.org Subject: Proposed change to make -j Message-ID: <20061123232035.GA56985@what-creek.com>
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Currently 'make -j' reports an error if the number of jobs isn't specified. I'd like to change make(1) to treat -j (without a number) as meaning "set the number of jobs to the number of processors". On sun4v, each processor isn't too powerful and system performance is only decent when you use all the processors - 32 in my case. I've been working on a parallel 'make release' process which would benefit from having -j set by default. At the moment I set MAKEFLAGS=j32 in my environment and this achieves the desired result, but -j would be more general. Thoughts? -- John Birrell
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