http://stackoverflow.com/questions/2708033/technically-why-is-processes-in-erlang-more-efficient-than-os-threads http://stackoverflow.com/questions/2708033/tech

http://stackoverflow.com/questions/2708033/technically-why-is-processes-in-erlang-more-efficient-than-os-threads http://stackoverflow.com/questions/2708033/technically-why-i... No concrete benchmarks but everything I can find makes the same claim. A context switch in erlang is approx 20 ns, and a OS level context switch is between 1000 and 2000 ns. Mostly because it can make more assumptions about state, less processor state flushing etc.