Ask and you shall receive.

Output for your non blocking version:

Good count is 3037
Bad count is 0
Total count is 3037

real    0m24.790s
user    0m1.093s
sys     0m1.046s
[download]

Forking version

Good count is 3037
Bad count is 0
Total count is 3037

real    0m15.358s
user    0m10.870s
sys     0m19.205s
[download]

The forking version is faster up to a point but really puts the CPU through the ringer compared to what you came up with. Once you start hitting around 5k servers or so is when your version starts to shine.