Not sure why the slow start for cubic is slower than the others.
We will check on this.
----- Original Message -----
From: "Stephen Hemminger" <[EMAIL PROTECTED]>
To: "Douglas Leith" <[EMAIL PROTECTED]>; "Sangtae Ha" <[EMAIL PROTECTED]>
Cc: <netdev@vger.kernel.org>
Sent: Wednesday, October 25, 2006 2:02 PM
Subject: TCP congestion graphs
I ran some congestion window tests against 2.6.19-rc3.
For congestion window graphs see:
http://developer.osdl.org/shemminger/tcp/2.6.19-rc3/
The connection was a single flow with a 500ms RTT and a
100Mbit slowest link speed.
BIC OK
CUBIC OK (after patch)
HIGHSPEED BROKEN?
HTCP OK
RENO OK (massive overshoot)
SCALEABLE OK
VEGAS OK (no better than Reno)
VENO Same as Reno?
WESTWOOD Overshoot then low window
Highspeed has something wrong (test glitch?)
Westwood behaves poorly
Veno seems no better than either Reno or Vegas in this
case.
The end systems were from latest git. The netem bridge is using
2.6.18-rt with a patch to netem to use hrtimers. iperf was modified
to allow easy selection of congestion control.
--
Stephen Hemminger <[EMAIL PROTECTED]>
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