I've been using Virtualmin GPL on an Virtuozzo (VZ) VPS for a couple years now. Lately*, I've run into a problem with the scheduled backup feature. That process can take a lot of memory. Unfortunately, the way VZ works, the VPS sees a lot more memory than it should use, so, during the backup, my VPS goes beyond my guaranteed memory limit and well into the "burst" zone.
Is there a place in the configuration of Virtualmin to set an upper limit on the backup process? I see that bzip2 has a memory switch "-s" that might be useful.