What does BR2_JLEVEL = 2 do in Buildroot?

Question

I set BR2_JLEVEL to 2; Not sure how this option works in buildroot? can someone give detailed information on how this works in buildroot, since I do not see improvements in my build time.

Answer 1

BR2_JLEVEL is equivalent to running 'Make' with the -j option.

Man page for make states

-j [jobs], --jobs [= jobs]

Specifies the number of tasks (commands) to run simultaneously. If there is more than one -j option, the latter is effective. If the -j option is given without an argument, make will not limit the number of jobs that can be run at the same time.

, BR2_JLEVEL = 2 , , , .