High speed packet captures - libpcap with TPACKET_V3

[Anders Broman <a.broman () bredband net>]

Hi,
The upcoming libpcap 1.5 have support for TPACKET_V3 which seems to 
improve on packet drops at high sped captures. However some tests on a 1 
Gb link with ~900 Mb/s indicates that tcpdump does better than dumpcap
possibly because dumpcap uses "inpkts = pcap_dispatch(pcap_opts->pcap_h, 
1, capture_loop_write_packet_cb, (u_char *)pcap_opts);"  fetching 
packets one by one rather than using -1.

Any way, any one interesting in looking into making dumpcap more efficient?

Regards
Anders
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