Errrm... So today I decided to investigate the performance issues of my block explorer.
You know how some pages take literally ages to load, eg. the one for the richest address?

Although the poor VPS has only 590MB available RAM (with another 1GB as swap), the bottleneck is actually the CPU...

So I sifted through the bitcoin-abe source code for hours, just to stumble upon this: http://gregsramblings.com/2011/02/07/amazon-ec2-micro-instance-cpu-steal/

TL;DR: FUCK YOU AMAZON!

I have yet to decide whether I'll switch to a bigger instance or ditch amazon altogether. Do you have any good VPS provider recommendations? I tried chunkhost for a bit, but my VPS got restarted several times during a one month period, which is unacceptable. The EC2 instance has not had a single unwanted reboot since I started it, quite impressive.