From: Eric Dumazet <eric.dumazet@gmail.com>
To: Ryousei Takano <ryousei@gmail.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>,
Patrick McHardy <kaber@trash.net>,
Linux Netdev List <netdev@vger.kernel.org>,
takano-ryousei@aist.go.jp
Subject: Re: HTB accuracy on 10GbE
Date: Wed, 04 Nov 2009 06:27:42 +0100 [thread overview]
Message-ID: <4AF110CE.8070701@gmail.com> (raw)
In-Reply-To: <4AF10B1D.4050604@gmail.com>
Eric Dumazet a écrit :
>
> Hmm, do you know part of the error comes from the user tool itself ?
>
> If you check iperf results at sender and receiver you'll see different
> values, sender lies a bit.
>
> Tried here on a Gbit link (I dont have 10Gbe yet)
>
> $ ./iperf.bench.sh
> .100 104
> .200 206
> .300 307
> .400 413
> .500 515
> .600 610
> .700 715
> .800 822
> .900 913
> 1.000 945
>
(that was with standard 1500 MTU)
Now, with 9000 MTU and 50 seconds samples (instead of 5 s) I get :
$ ./iperf.bench.sh
.100 101
.200 200
.300 301
.400 401
.500 500
.600 601
.700 700
.800 803
.900 903
1.000 991
Not too bad :)
next prev parent reply other threads:[~2009-11-04 5:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-02 7:22 HTB accuracy on 10GbE Ryousei Takano
2009-11-02 8:17 ` Badalian Vyacheslav
2009-11-02 15:43 ` Patrick McHardy
2009-11-02 20:53 ` Stephen Hemminger
2009-11-03 7:43 ` Badalian Vyacheslav
2009-11-03 9:33 ` Jarek Poplawski
2009-11-03 10:13 ` Badalian Vyacheslav
2009-11-03 10:54 ` Jarek Poplawski
2009-11-03 11:13 ` Badalian Vyacheslav
2009-11-04 3:13 ` Ryousei Takano
2009-11-04 3:45 ` Ryousei Takano
2009-11-04 5:03 ` Eric Dumazet
2009-11-04 5:27 ` Eric Dumazet [this message]
2009-11-04 8:19 ` Ryousei Takano
2009-11-04 11:31 ` Eric Dumazet
2009-11-04 13:39 ` Jarek Poplawski
2009-11-04 16:31 ` Ryousei Takano
2009-11-04 17:03 ` Eric Dumazet
2009-11-05 7:08 ` Ryousei Takano
2009-11-05 7:10 ` Eric Dumazet
2009-11-05 10:15 ` Ryousei Takano
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