[Solved] Only one core used in extract / unpack?

[Arbie]

I notice (after a very long time) that extraction un-RARs seem to use only one CPU core. Is that as intended? Lots more cores available now...

Not posting all details and log because this seems much more likely to be an architectural decision rather than a bug.

Thx


EDIT: I just realized that the job I was unpacking had only one RAR. Maybe that's why! And why I haven't noticed it before.

[Jiaz]

Extraction in JDownloader always used only one core.
Maybe this will change with updated 7zip binding, but the current one only uses one core