From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] AQM creeping into L2 equipment
Date: Fri, 21 Mar 2014 17:42:18 +0100 [thread overview]
Message-ID: <20140321164218.GA9261@sesse.net> (raw)
In-Reply-To: <CAA93jw74imdKJ36kE-ruDGO9Z3NhbR_BAg=_pHJTQOButkLVXA@mail.gmail.com>
On Fri, Mar 21, 2014 at 03:39:16PM +0000, Dave Taht wrote:
>>> Is your hardware fast enough to run tcpdump -s 128 -w whatever.cap -i
>>> your interface during an entire rrul test without dropping packets?
>>> (on client and server)
> (question to list) Are there any options to tcpdump or the kernel to
> make it more possible to capture full packet payloads (64k) without
> loss at these speeds? tshark?
You can capture tens of gigabits of traffic if you use the mmap packet ring
stuff. Doubt tcpdump supports it, but it wouldn't be impossible to do.
I'm a bit confused if a normal machine these days can't easily saturate
gigabit (and capture it to SSD without further problems), though.
/* Steinar */
--
Homepage: http://www.sesse.net/
next prev parent reply other threads:[~2014-03-21 16:42 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-18 14:52 Steinar H. Gunderson
2014-03-18 17:17 ` Dave Taht
2014-03-18 17:53 ` Steinar H. Gunderson
2014-03-19 22:22 ` Steinar H. Gunderson
2014-03-18 18:05 ` Fred Baker (fred)
2014-03-18 18:54 ` Dave Taht
2014-03-20 16:20 ` Toke Høiland-Jørgensen
2014-03-20 16:29 ` Dave Taht
2014-03-20 16:44 ` Toke Høiland-Jørgensen
2014-03-20 17:14 ` Dave Taht
2014-03-20 19:34 ` Aaron Wood
2014-03-20 20:23 ` Dave Taht
2014-03-20 23:41 ` Eric Dumazet
2014-03-20 23:45 ` Steinar H. Gunderson
2014-03-20 23:54 ` Steinar H. Gunderson
[not found] ` <CAAvOmMtt1RCpBfT1MPNh-2FRhQ1GN4xYbfNPLYJwfP6CaP5vow@mail.gmail.com>
2014-03-21 15:06 ` Eric Dumazet
[not found] ` <CAAvOmMvPpmuW1chTdX86s5sQv6X_c622k8YrjW+hN8e5JV+dzA@mail.gmail.com>
2014-03-21 17:51 ` Eric Dumazet
2014-03-21 18:08 ` Dave Taht
2014-03-21 22:00 ` Eric Dumazet
2014-03-21 22:13 ` Dave Taht
2014-03-23 19:27 ` Eric Dumazet
2014-03-21 13:41 ` Toke Høiland-Jørgensen
2014-03-21 15:39 ` Dave Taht
2014-03-21 16:42 ` Steinar H. Gunderson [this message]
2014-03-21 18:34 ` Toke Høiland-Jørgensen
2014-03-24 23:16 ` David Lang
2014-03-20 18:16 ` [Bloat] AQM creeping into L2 equipment / 10G not-for-profit playground at tetaneutral.net Laurent GUERBY
2014-03-18 18:57 ` [Bloat] AQM creeping into L2 equipment Dave Taht
2014-03-18 21:06 ` Steinar H. Gunderson
2014-03-19 13:11 ` Nikolay Shopik
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