hi, I just checked the two mechanism : (1) Using mmap to fetch packets from kernel to userspace (2) Using recvfrom() call to fetch packets
I see top reports (1) 34% memory 20% cpu usage (2) 21% memory 7% cpu usage ! I wanted a performance improvement using mmap but I am slowing my small router for packet capture( I can't use pcap for that; I have modified skbuff ) and its worst than twice ! Memory increase is fine. Can anyone suggest what going on ? Or how to improve -Abhinav Narain _______________________________________________ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
