If you've noticed any speed increases with lj tonight - you know who to thank. He spent a long time busting his ass looking for things to fix, and without any hardware or any magic managed to tweak the code and improve things.
He doesn't get nearly enough credit (or money for that matter), and not nearly enough acknowledgement for his efforts. So give him a little, folks. Other than Brad he's probably put more effort than anyone into making LJ the best service it could be, and had a lot more success than anyone else at it.