Subject: conflict between mrtt and actual rtt

From: Gokul Poduval <[email-masked]>
Date: Mon, 18 Nov 2002 21:13:23 +0800

Hello,
   I am trying to implement some fairness policies in the 2.4 linux kernel. 

   For this, I have two hosts between which I have fixed the RTT as about 330ms. But when I print out the mrtt in the function tcp_rtt_estimator in net/ipv4/tcp_input.c, I get mrtt as anything from 100 to 275 jiffies. converting to milliseconds, this gives me about 1000-2750 ms. 

   Why is there a conflict here ? How do I actually measure the rtt in tcp_input.c ?

Yours Sincerely,
Gokul Poduval