measure time

hi, I want to measure the time elapse when the socket copy data from user
space to kernel space, and time elapse when data flow down to adjacent
protocol layer. can anybody give me some advice. thanks very much.

"linda" <(E-Mail Removed)> wrote in message news:<bk9qdq$l7i$(E-Mail Removed)>...
> hi, I want to measure the time elapse when the socket copy data from user
> space to kernel space, and time elapse when data flow down to adjacent
> protocol layer. can anybody give me some advice. thanks very much.

look at the times(2) manpage: "man 2 times"

basically, you use the times() function to record the current time
information, execute whatever operation you want, then run times()
again and print the difference.