On a Pentium II MMX/400, using the default environmental constants:

For each of the following run times, the simulation was run once for each food dump type, and measurements began 50 time steps before the end of each simulation.  No other applications were running.

NOTE: These are just samples, actual run times may vary widely.

Simulation Size: 100
Run Time in Sec.: 42

Simulation Size: 125
Run Time in Sec.: 107

Simulation Size: 150
Run Time in Sec.: 216

Simulation Size: 175
Run Time in Sec.: 307

Simulation Size: 200
Run Time in Sec.: 398

Simulation Size: 225
Run Time in Sec.: 551

Simulation Size: 250
Run Time in Sec.: 748

Simulation Size: 275
Run Time in Sec.: 868