Where is ACT_RU_ACTINST used and can i delete data from it?

BTW I forgot 1 important thing: we have such big history because we have processes with loops running since several months. These processes were supposed to have been stopped, what wasn’t the case due to this other issue: How to delete a process? - #4 by wberges
So when we combine both, we have 140Gb in ACTINST :wink: