Win7 x64 / i7@3.9GHz / 8 cores / 12GB@1600MHz / SSD mirrored, warm
clobbered build of debug desktop browser:
-j12: 19m00s exactly
-j9: 18m45s exactly
Using more processes then cores is counter productive. I checked
this 2 years ago already when build took just 13 minutes (we
grow!!).
Conclusion: YMMV, most likely, depending on OS ; I'm on Linux. IOW, it's
better to make it configurable.
And on OSX, the same is true
http://blog.johnford.org/new-mac-builders-ssds-j-settings/
Mike
Quoted from that blog:
"I did find that it is better to set the -j setting too high than it is
to set it too low."
-Gary
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