| To: | Stephen Hemminger <shemminger@xxxxxxxx>, "Injong Rhee" <rhee@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [RFT] BIC TCP delayed ack compensation |
| From: | Hubert Tonneau <hubert.tonneau@xxxxxxxxxxxxxx> |
| Date: | Wed, 23 Feb 2005 21:54:47 GMT |
| Cc: | "'cliff white'" <cliffw@xxxxxxxx>, "'Alexey Kuznetsov'" <kuznet@xxxxxxxxxxxxx>, <netdev@xxxxxxxxxxx>, "'David S. Miller'" <davem@xxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
Stephen Hemminger wrote: > > An interesting test would be to repeat the slow case: 2.6.10-ac11 over 100Mbps > > With first TCP Reno (old default). > sysctl -w net.ipv4.tcp_bic=0 No change. > then TCP Westwood. > sysctl -w net.ipv4.tcp_bic=0 > sysctl -w net.ipv4.tcp_westwood=1 No change. Now Linux 2.6.11-rc4 with Injong Rhee abc patch: No change. Looks like David S. Miller is right. Now, what I still don't understand is, if it's PSH/ACK related, why does the gigabit connected Mac works nicely whereas the 100 Mbps connected one does not ? |
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