jemalloc really improved my situation. Before it, I would run a study and then randomly get an out-of-memory error despite having relatively low number/size of

jemalloc really improved my situation. Before it, I would run a study and then randomly get an out-of-memory error despite having relatively low number/size of GC objects... my FFI objects were snagging space from them. Switching allocations to jemalloc (which LDS makes easy to do) alleviated the problem entirely. I've been eyeing SnabbSwitch for a while -- I use OpenOnload extensively, so appreciate what you are doing.