> Dear all,
> can someone please be so kind and give me a layman explanation of the -j option in
> MAKE command?
> I do understand that it's something related to my CPU, but would like to understand
> what the number after the -j means, and what would be the best for me.
>
> Thanks in advance for your help.
-j [num], --jobs[=num] Allow num jobs at once; infinite jobs with no argument.
The general accepted amount to put in there is number of CPU cores +1 for anything 2 cores or more.
Dual core cpu? -j3
Quad core cpu? -j5
Dual-Quad core? -j9
Also, if you have large amounts of RAM you sometimes can add 1 or more to the value. In the end, it allows for faster compiling by using all CPU cores to accomplish the tasks. Just be wary of slower HD's or other media - you may not be able to be successful with those settings mentioned. Other utilities, too, might interfere (real time virus scanning, GIT caching (depending on client) or anything else that might fight for control over new files being created.
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