How to get the internet connection speed with objective c in mac os sdk -

i need internet connection speed connected internet connection objective c in mac os application.

there's no "formal" way this. note in practice "internet connection speed" makes little sense. mean "max bandwidth nearest gateway", in more general fashion doesn't make sense (think router several network interfaces instance).

anyway, won't find api this. you're better off optimizing "worst case scenario", , go faster if user has more bandwidth.

also note might able tell if ios device on wifi or 3g though.