Re: snd_cwnd drawn and quartered

[kuznet@xxxxxxxxxxxxx]

Hello!

> I am not sure what you mean here, slow start takes much faster to
> transmit 100 pkts than 100 RTTs.  Maybe there is a misunderstanding here,
> when cwnd=1 in congestion recovery, it will stay at 1 until it exits
> recovery unless some packet times out first.

I see! Seems, you spotted a real problem. I missed this.

I feel we should add a trigger stopping such "fast" :-) restransmit
when cwnd falls low. Maybe, the same <cwnd/4 is good criterium.
I need to think, the situation is really weird.

Could you, please, prepare a demo pseudo-tcpdump with your simulator?

> just curious if people can come up with better ways to set cwnd.

Come up! :-)

Alexey