Re: [lwip-users] lwIP upload speed bottleneck

[tamirmichael]

Martin Velek wrote:
> 
> Hello,
> 
> what about ping with the packet of size 512, 1024 - ... B? Is the
> response also after 100 ms?
> 
> Martin
> 
> On Mon, Sep 3, 2012 at 3:17 PM, tamirmichael <address@hidden>
> wrote:
>> Hello, I am uploading a very large file to a server using a single POST
>> command. I have taken notice of different performance tuning tips
>> (http://lwip.wikia.com/wiki/Tuning_TCP) but I still have a performance
>> problem: Using wireshark, I see that once the ACK of the server arrives,
>> my
>> LPC1788 (120MHz) requires up to 300 milliseconds to start sending the
>> next
>> segment. If there any parameter that can affect this behavior? 300
>> milliseconds seem to long! Thanks in advance!
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> 

Thanks for your reply. I managed to fix it - had the memory/checksum
verifications enabled!
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