On 27/11/12 22:35, Gregory Szorc wrote: > I feel the build system should be as fast as possible by default - no > user action necessary. If you find that -j == # cores isn't providing > the fastest builds possible, please present your data and we'll change > the default value.
I recently changed my laptop so I tried to tweak a bit my -j value and it happens that 2N is faster than N for me. IIRC, that was a 5-10 minutes difference for a 30-35 minutes basis. My feeling is that most of the time, the -j value isn't an exact science. During years, I was setting j to N+1, some people use N and other 2N. I would guess that the correct value depends on a lot of variables. If you really want to get rid of MOZ_MAKE_FLAGS, maybe you could add a new variable to just set the -j value with a default to N if most people thing this is the best value. Cheers, -- Mounir _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
