IMO swap should be a found using fio with a rw test using 4-16k (Linux does 16k reads on swap req due to vm.page-cluster) threaded to the number of processors o

IMO swap should be a found using fio with a rw test using 4-16k (Linux does 16k reads on swap req due to vm.page-cluster) threaded to the number of processors on the system * the amount of time you're willing to let the OOM thrash around. The swap should also use zswap to compress in ram and shunt uncompressable to swap.