parallel builds revisited

Kris Kennaway kris at
Sat Apr 14 00:03:49 UTC 2007

On Fri, Apr 13, 2007 at 04:51:33PM -0700, youshi10 at wrote:

> My opinion is that there should be a threshold value empirically derived by 
> the developer / retrieved by bug reports, as well as a knob, to specify the 
> maximum number of parallel jobs to be used for a particular port, that way 
> you don't get people accidentally specifying, say 10 jobs when it can only 
> handle 2-3.

That's a false dichotomy; either a port correctly specifies its
dependency ordering in which case it will build under all
circumstances, or it does not, in which case it may randomly fail due
to factors other than -j value, including system load, CPU vs I/O
speed, etc.

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