200,000,000 keys in Redis 2.0.0-rc3

Try out Tokyo Tyrant. It'll use at least half the space.

The key is a long cast to a string, and the value is an int. So 2.23GB of data became 24GB. Quite a large loss factor there.<p>Calculation the load capacity seems like it should be a trivial exercise and shouldn't require a test it approach.