On Do, 23.03.23 16:59, Etienne Champetier (champetier.etie...@gmail.com) wrote:
> Le jeu. 23 mars 2023 à 16:37, Etienne Champetier > <champetier.etie...@gmail.com> a écrit : > > > > Hello, > > > > I'm setting `CPUAffinity=0-1` in /etc/systemd/system.conf, this works great. > > Now, I want one of my units to set CPUAffinity to all available CPUs, > > without knowing the number of CPUs. > > Using `CPUAffinity=` reset the setting but we are still inheriting > > from the parent so I still have `Cpus_allowed_list: 0-1` > > Is there a way to do that in the latest systemd versions ? (I'm using > > Alma Linux 8.7 / systemd-239-68.el8_7.4) > > Actually `CPUAffinity=0-999` works, > any plans to make it error out or warn when CPU don't exists ? We generally have the plan to make systemd units "universal", i.e. that they always apply to the local system in the best way possible. There are some exceptions (exclusively in the security area) where we do not gracefully accept configuration mismatches, but for things like resource management (and cpu affinity is part of that) we certainly have the goal to handle this nicely. That said, adding CPUAffinity=all would certainly be a useful concept to have. Consider submitting an issue asking for that on systemd Github. Or even better, send a patch! Lennart -- Lennart Poettering, Berlin
