netdev - Re: [PATCH iproute2] Re: HTB accuracy for high speed

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Date:	Tue, 2 Jun 2009 12:45:28 +0100
From:	Antonio Almeida <vexwek@...il.com>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Stephen Hemminger <shemminger@...tta.com>, netdev@...r.kernel.org,
	kaber@...sh.net, davem@...emloft.net, devik@....cz,
	Eric Dumazet <dada1@...mosbay.com>,
	Vladimir Ivashchenko <hazard@...ncoudi.com>
Subject: Re: [PATCH iproute2] Re: HTB accuracy for high speed

On Tue, Jun 2, 2009 at 11:12 AM, Antonio Almeida wrote:
> I'm getting great values with this patch!
>...
> I'll get back to you with more values.

The steps are much smaller and the error keeps lower than 1%.
Injecting over 950Mpbs of tcp packets of 800bytes I get these values:

Configuration	Sent rate		error (%)
498000Kbit	495023Kbit	0,60
499000Kbit	497456Kbit	0,31
500000Kbit	497498Kbit	0,50
501000Kbit	497496Kbit	0,70
502000Kbit	499986Kbit	0,40
503000Kbit	499978Kbit	0,60
504000Kbit	502520Kbit	0,29
		
696000Kbit	690964Kbit	0,72
697000Kbit	695782Kbit	0,17
698000Kbit	695783Kbit	0,32
699000Kbit	695783Kbit	0,46
700000Kbit	695795Kbit	0,60
701000Kbit	695786Kbit	0,74
702000Kbit	700703Kbit	0,18
		
896000Kbit	888383Kbit	0,85
897000Kbit	896289Kbit	0,08
904000Kbit	896389Kbit	0,84
905000Kbit	904542Kbit	0,05

  Antonio Almeida
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