compare memory (diffmemory): how does it relate to RAM, virtual memory?
I have 2GB physical RAM. I had 2048 MB virtual memory. I was able to set diffmemory to 5000. I doubled my virtual memory to 4096. If I got anything out of this change, it is only incremental ... I have just run at diffmemory=5200. (diffmemory=5200 might have worked before my change, I'm not sure if I tried it). I can't run diffmemory=5500 now and couldn't before, either.
I expected at least a + 2000 capability in diffmemory after making the change.