tcpdump mailing list archives
Re: Best OS / Distribution for gigabit capture?
From: Fabian Schneider <schneifa () net in tum de>
Date: Mon, 7 Feb 2011 08:43:45 +0100
Hi, Regarding the OS we have done testing on this some five years ago. Back then we found that FreeBSD performed better than Linux. Yet there have been improvements proposed for both Linux (memory mapping, and Luca Deri's work) and FreeBSD ("zero-copy BPF and Alexandre Fiveg's work). To get details just google all this. Yet, experience from operating a large scale packet capturing systems shows that the biggest challenge usually is to have a disk system that is fast enough to write the stream of packets to disk. You might want to check this first. (e.g. you can run a Bonnie++ to see how fast your disk system is.) Best Fabian Sent from iPhone -> might be shorter than usual Am 06.02.2011 um 08:20 schrieb "M. V." <bored_to_death85 () yahoo com>:
hi, as i mentioned in my previous mail, (with the title: "HUGE packet-drop") i'm having problem trying to dump gigabit traffic on harddisk with tcpdump on Debian5.0. i tried almost everything but got no success. so, i decided to start-over: *) if anyone has experience on successful gigabit capture, what combination of "Operating-System / Distribution / Kernel Version / libpcap version / ..." do you suggest for maximum zero-packet-loss capture? thank you. - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
- This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- Best OS / Distribution for gigabit capture? M. V. (Feb 05)
- Re: Best OS / Distribution for gigabit capture? Guy Harris (Feb 06)
- Re: Best OS / Distribution for gigabit capture? Fabian Schneider (Feb 07)
- Re: Best OS / Distribution for gigabit capture? Rick Jones (Feb 07)
- Re: Best OS / Distribution for gigabit capture? Darren Reed (Feb 07)
- <Possible follow-ups>
- Re: Best OS / Distribution for gigabit capture? M. V. (Feb 08)