From: Jeff Sipek <jeffpc@optonline.net>
To: vda@port.imtp.ilyichevsk.odessa.ua,
Bernd Eckenfels <ecki-lkm@lina.inka.de>,
linux-kernel@vger.kernel.org
Subject: Re: Net device byte statistics
Date: Fri, 25 Jul 2003 12:23:37 -0400 [thread overview]
Message-ID: <200307251223.51849.jeffpc@optonline.net> (raw)
In-Reply-To: <200307250654.h6P6s9j05200@Port.imtp.ilyichevsk.odessa.ua>
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On Friday 25 July 2003 03:03, Denis Vlasenko wrote:
> I sample the data every minute. Will need to do it much more often
> on 10ge ifaces, when those will appear at my home ;)
Speed Time for one overflow
10Gbits/s => 3.436 seconds
1Gbit/s => 34.36 seconds
100Mbits/s => 343.6 seconds
> Or we will need 64bit counters then.
For anything up to (and including) 1GBit/s it is possible to do in easily in
userspace, but then were are getting into an area where a program would have
to check the files every 3 seconds (and a bit of load could delay it long
enough for an overflow to happen.)
Jeff.
- --
FORTUNE PROVIDES QUESTIONS FOR THE GREAT ANSWERS: #19
A: To be or not to be.
Q: What is the square root of 4b^2?
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next prev parent reply other threads:[~2003-07-25 16:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-24 23:56 Net device byte statistics Fredrik Tolf
2003-07-25 0:22 ` Bernd Eckenfels
2003-07-25 2:37 ` Fredrik Tolf
2003-07-25 3:26 ` Bernd Eckenfels
2003-07-25 3:49 ` Jeff Sipek
2003-07-25 3:54 ` Jeff Sipek
2003-07-25 7:03 ` Denis Vlasenko
2003-07-25 7:01 ` Andre Hedrick
2003-07-25 16:23 ` Jeff Sipek [this message]
2003-07-25 17:20 ` Randy.Dunlap
2003-07-25 17:55 ` Jeff Sipek
2003-07-25 17:58 ` Randy.Dunlap
2003-07-25 21:55 ` jw schultz
2003-07-25 22:51 ` Jeff Sipek
2003-07-26 0:08 ` Ben Greear
2003-07-26 0:44 ` jw schultz
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