From: Don Zickus on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1635#note_8606...
I just tested this and it is a nice speed up. Thanks! However it isn't
controlled by the -j flag. It doesn't matter what -jX you use, the script by
design just runs every invocation of the script in the background and then
waits. I happen to have 12 cpus, so I couldn't notice if the 13 configs had a
bottleneck.
You might want to test on a 4 cpu machine and see what it looks like or
implement logic to actually use -jX.