Re: Snort as Gigabit Sensor

[Chris Green <cmg () sourcefire com>]

Frank Knobbe <frank () knobbe us> writes:
> Touche. Still didn't answer my question though :)  How much buffering
> occurs in libpcap?

That's implementation depedent between drivers, cards, and pcaps. Peg
tcpdump-workers () tcpdump org when you want to help find out.  Not a lot
is typically done at pcap though there are exceptions.

The real answer:

never as much as you would want.  Separating them out might be a fun
project for someone and separating out the stuff that happens before
the InterfaceThread from the things that happen in the pcap_loop
callback and comparing.
-- 
Chris Green <cmg () sourcefire com>
A watched process never cores.


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