How can i learn using PerformanceGraph ...it is very important... if you know any document or article!!

How can i learn using PerformanceGraph ...it is very important... if you know any document or article!!

can you write a small example?

Yes thanks i understand first one... "how can i get recieved bytes from int. connection?? " I mean, How can i show internet traffic monitor on my application?

How can i check the internet connection, also how can i get recieved bytes from int. connection??