I am trying to figure out what set of tunables need to be tweaked in order
to get an Internet connection operating at decent speed in _both_
directions. Here are my particulars:
Source: FreeBSD 8.4 AMD
Target: Ubuntu 14.04 x64
Iperf tests:
Source -> Target:
# iperf -t10 -P1 -i1 -c
---
System: FreeBSD 8.3 amd64
I've been trying to tune my system to a long route (RTT 180ms) and I've
made 2 modifications and seeing some results which I cannot explain or
understand.
1. kern.ipc.maxsockbuf: 262144 -> 4194304
Speed improves from 85 Mbps -> 100 Mbps
I can run the test: iperf -c tse
I'm seeing an occasional, recurring problem on my 8.3-RELEASE amd64 systems
where when I enter an ipfw rule, the system becomes locked up.
For example, when entering a command like this:
ipfw add 1 allow ip from x.x.x.x to me
or other times with a command like:
ipfw add xxx skipto
the
