in reply to
Using LWP: is there a way to get the server response time?
If raw performance (time from "request-came-in" to "about-to-start-sending") is what you want to measure, in my humble opinion you should measure that on the server itself, not the client, otherwise the network will allways interfere with your measurements - in our current projects we send an X-header holding the processing time: X-Time: 0.017s
An intellectual is someone whose mind watches itself.
-- Albert Camus