The background is that I want to find the fastest mirror for CTAN. And I don't want to ping their addresses one by one.
I searched this on google and found netselect.
However, this seems not work on Windows, I tried cygwin, but the compilition failed, even without any error message.
So, is there a simple method to test their speed?
BTW, methods for Linux (expect netselect) is also welcomed.