06de2ea752
The algorithm for this is currently very simple: all persistent processes are always in the normal scheduling group, all other processes are normal if their oom_adj is as good or better than VISIBLE, otherwise they are in the background group. Note that this currently results in a fair number of log messages about not being able to change the group, since the system process does not have permission to do so. Once a kernel fix is in, these will go away and the code will start working.