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Xilinx-CNS / solarcapture

SolarCapture network packet capture suite
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Solarcapture pro statistics #18

Open subho951m opened 2 weeks ago

subho951m commented 2 weeks ago

I have downloaded solarcapture python codebase and have enterprise onload running on xtremescale 2522+ nic. I run using python solar_capture. I am not getting packets capture statistics like tcpdump such as packet capture, dropped by kernel, dropped by interface and the basics to determine my capture performance. I can get only n_rx_pkts which is same as the number of packets in my output pcap file. Is there any solution already available or do I need to make my own custom one? Please guide me through.

abrunnin-xilinx commented 2 weeks ago

Detailed statistics are available via "solar_capture_monitor dump" But the more useful place to immediately look is the interface statistic "rx_port_nodesc_drop" (in ethtool -S). This is packets dropped at the interface due to the RX ring not having space for them - which is the only place SolarCapture can cause drops. (Either directly due to insufficient capture_cores, or indirectly due to the disk writer being too slow and then back-pressuring the buffers, leading to the RX ring getting starved.)