1000 processes in half a second is very slow when you take into consideration how much work a modern CPU can do in a second. You could have ran though hundreds

1000 processes in half a second is very slow when you take into consideration how much work a modern CPU can do in a second. You could have ran though hundreds of millions of loop iterations doing some non-trivial task in the same amount of time, even on very slow machines. I'm not disagreeing about process spawn times not being extremely slow, I would have guessed a few milliseconds depending on the program, but a millisecond is a long time for a computer.