On 14.08.2018 15:23, Nenad Pekez wrote:
[..]
Well, the problem is that I cannot find appropriate third party
application which is doing sending and receiving at the same time. I
have checked iperf application provided in lwip src, but there the
sending is done after the receiving is finished.
Have a 2nd look. When I last checked, this worked :-)
It depends on the iperf client's arguments though. And it might depend
on the version of lwIP...
Whatsoever, I did use this application as reference for implementing
my application. I was also checking some Xilinx iperf examples.
Since you are debugging a heavy sender
Is this really a heavy sender? It's just 1.5MB per second on a 1Gb
Ethernet.
Depending on processor speed, yes, this is a heavy sender.
the web server might be a better
choice.
I cannot find this application in lwip src. Maybe you can give me some
references?
src/apps/httpd?
You can also use a bare minimum app that "just sends"
When I do "just sending" or "just receiving" the problem does not
exist. I would send you my code on how the sending is done. But
basically I just write to TCP buffer from time to time in the main
loop and have a counter in tcp_sent callback counting how much data
has been acknowledged. Nothing more than that. Maybe I should continue
sending from tcp_sent callback?
And sometimes caches... what is it that you have there ?
Wow, caches are story for itself. I still need to check some stuff
with caches. Will report on this one.
I still suspect the netif driver...
Cheers,
Simon
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