Hello, In order to test rtcap+wireshark perf to see if it could analize a full loaded traffic, I ran a simple program that sends n UDP packets of 1 kBytes from a box (xenomai 2.3.1+ rtnet 0.9.9+ e1000) to another (xenomai 2.3.1+ rtnet 0.9.9+ eepro100 + rtcap + wireshark). Packets are sent without delay between each of them. If more than 100 packets are sent, wireshark only shows 82 captured packets and rt_sendmsg function doesn't return any error. What could be the source of this loss ? Is it sure that packets are really sent ? Is there a means to know how many packet did the NIC really send ? Did rt_dev_sendmsg return error if NIC has not enough buffer space at driver layer or below ?
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