At Wed, 08 Sep 2004 11:52:30 -0700, julian wrote: > My curiosity is if we see the tcp.cc code inside,
tcp.cc ? That's not a kernel file. > there are two different version of srtt (smoothed rtt) and rttvar > (smoothed mean deviation estimator). The one is simply 'srtt' and > 'rttvar' and the other is 't_srtt' and 't_rttvar'. The unit of > t_srtt is 'ticks * 8' and the unit of t_rttvar is 'ticks * 4'. In -CURRENT, and I would suspect most recent versions of FreeBSD, the only variables I find are t_srtt and t_rttvar which are used as fixed point values. srtt and rttvar were variables used in the older (BSD 4.4?) code. I believe they were documented in Steven's TCP/IP Illustrated Volume 2 but I don't have my copy here so I can't check. Later, George _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
