GNU make: should -j equal number the number of CPU cores in a system?

Posted by Johan on Stack Overflow See other posts from Stack Overflow or by Johan
Published on 2010-03-23T10:29:10Z Indexed on 2010/03/23 10:33 UTC
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gnumake

Hi

What is you experience with the make -j flag?

There seem to be some controversial if the jobs are supposed to be equal to the numbers of cores, or if you can maximize the build by adding one extra job that can be cued up while the others "work".

The question is if it is better to use -j4 or -j5?

And have you seen (or done) any benchmarking that support one or the other?

Thanks Johan

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GNU make: should -j equal number the number of CPU cores in a system? - Developer IT

GNU make: should -j equal number the number of CPU cores in a system?

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