[Tech] LIFO simulations

[Michael Rogers]

> My guess would be we're not counting the requests that never complete?

Every search that leaves the node's search queue will eventually 
complete, either by getting a result or by timing out. Part of the 
reason for discaring the first hour's output is to make sure we're 
measuring the system in equilibrium, ie searches are completing at the 
same rate new searches are being started (on average).

Cheers,
Michael