Right, rebooted, back to running it from disk and using the old config file from before the reinstall.
Still running like a pig. The only change is that it's allocated 3GB of RAM, perhaps it's got too much? :\
Back to old settings, back to old JVM (was running on the 64bit JVM), and it's just as bad.
What. The. Fuck.
Was it running OK last night?
I'm struggling to even log in from my laptop now, getting a timeout (took too long to connect).
The PC is sitting at 2% CPU usage, nothing else running.
Drrrrr.