Re: Setting 'make -jN' in makeprg

Hi Ben!

On Mo, 16 Apr 2012, Ben Fritz wrote:

> Eclipse has a "use optimal number of jobs" setting, but all this does
> is pass the -j flag with NO argument to make. Apparently this actually
> spawns ALL jobs which can be parallelized, all at once when make
> begins. Somehow on my and several coworkers' machines, this works just
> fine, and gives equivalent performance to the fastest time given from
> experimenting with various explicit numbers of jobs (which happened to
> be 1.5 times the number of processors for us...we all have 4-core
> machines). But...not passing an explicit number of jobs fails
> miserably on other machines, which more predictably run out of memory
> and/or process IDs and the build crashes.

,----[ http://www.gnu.org/software/make/manual/make.txt ]-
| If the `-j' option is followed by an integer, this is the number of
| recipes to execute at once; this is called the number of "job slots".
| If there is nothing looking like an integer after the `-j' option,
| there is no limit on the number of job slots. The default number of job
| slots is one, which means serial execution (one thing at a time).
`----

Well, "no limit on the number of job slots" doesn't sound right, in my
opinion.

regards,
Christian
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