Arg. TCP slow start killing me.

[Julian Elischer]

On 11/13/11 10:54 PM, Erich Weiler wrote:
>> Have you considered empty ACK prioritization? I implemented this a 
>> year
>> ago on a pair of production edge routers and noticed significant
>> improvement on throughput. I have production code examples if you
>> require them, but this link should be more than enough to get you 
>> started:
>
> Fascinating.  pfSense does have traffic shaping options, among them 
> ACK prioritization and queues.  Let me play with that a bit.  
> Totally could be affecting me - my downstream traffic could be great 
> enough to crowd out ACKs, thus causing the TCP stream resets.  
> Sounds plausible, at least.

As I said before, try shaping traffic in each direction to be just a 
little less than what the other limits  (e.g. your link) might be.

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