Subject: Re: HTB accuracy for high speed

From: Jarek Poplawski <[email-masked]>
Date: Mon, 18 May 2009 10:45:59 +0000

On Mon, May 18, 2009 at 11:01:21AM +0100, Antonio Almeida wrote:
> Hi!
> 
> cat /sys/devices/system/clocksource/clocksource0/current_clocksource
> returns "jiffies"
> 
> With HFSC the accuracy is good. Also with packets of 800 bytes I got
> these values:
> received            configured         error
> 904596519	900000000		0,51
> 804293658	800000000		0,54
> 703662853	700000000		0,52
> 603354059	600000000		0,56
> 502805411	500000000		0,56
> 402527055	400000000		0,63
> 301484904	300000000		0,49
> 201074301	200000000		0,54
> 100546656	100000000		0,55
> 

Looks great! But, since HFSC uses rates directly (without rate tables)
seems to be logical. So, it looks like the best choice for handling
>100Mbit configs now.

Thanks,
Jarek P.