That alpha also does DNS for about 5K systems. Then nuke perl, write your scripts in C, or in SH scripts or something. If you have that many systems you are doing DNS for. Compartmentalize your servers.
Computers are cheap enough to seperate huge systems up.
I've seen it where it gets a lot of usage. If you are getting that many hits, you should be making enough money to purchase a new machine to put in it's place. I'm not fluent in HP equipment to say much of anything about them.