Stop showing off, guys ... ;-)
About 30 years ago, I let my Atari 1040STF (8Mhz, no hard drive...) scratching a floppy disk all night long to render this very blob : http://csi.chemie.tu-darmstadt.de/ak/immel/graphics/povray35...
(Kidding. Posting links on HN is basically a community load test.)
Depends on the situation, but 100 requests/seconds sound like a lot to me (depending on how heavy the processing is, of course). And every page visit generates 8 requests, so that's "just" 12 people visiting per second.