[mod_python] ab tool query

Hello Friends,
I have a query regarding ab - Apache Benchmark Tool for Load Testing.
If i use ab tool for Apache Server Load Testing for an html page request
which has iframes in it whose source is an href will the time per 
request will be of just
loading the html page (not loading the iframe src link ) or
will it be both .
Please reply if you know the answer.
Thanks in Advance.
Regards ,
Ajinkya