On Fri 26-11-21 16:26:23, Hao Lee wrote: [...] > I will try Matthew's idea to use semaphore or mutex to limit the number of BE > jobs that are in the exiting path. This sounds like a feasible approach for > our scenario... I am not really sure this is something that would be acceptable. Your problem is resource partitioning. Papering that over by a lock is not the right way to go. Besides that you will likely hit a hard question on how many tasks to allow to run concurrently. Whatever the value some workload will very likely going to suffer. We cannot assume admin to chose the right value because there is no clear answer for that. Not to mention other potential problems - e.g. even more priority inversions etc. -- Michal Hocko SUSE Labs
