Ruby中詳細的URL提取信息

Question

有什麼方法可以獲取信息：連接遠程服務器需要多長時間，接收響應的第一個字節所需的時間以及下載整個文件所用的時間？

我正在嘗試創建類似Pingdom所做的操作。

alt text http://tools.pingdom.com/fpt/_img/img_explanation.gif

Answer 1

你可以用插座做到這一點，就像這樣：

require "socket" 

# START MEASURING CONNECTION TIME 
connection = TCPSocket.open("example.com", 80) 
# END MEASURING CONNECTION TIME 

connection.print "GET/HTTP/1.1\r\nHost: example.com\r\n\r\n" 

# START MEASURING RESPONSE FETCHING TIME 
response = connection.read 
# END MEASURING RESPONSE FETCHING TIME 

connection.close