[LARTC] Clock Source Kernel settings in 2.6.22

[Patrick McHardy]

On Wed, 29 Aug 2007, Mario Antonio Garcia wrote:

> I wonder if somebody has got good results (accurate shaping) using 2.6.22?
>
> I am testing with 2.6.22.1, and I haven't been able to get accurate shaping.
> For instance, I tried:
>       $TC qdisc  add  dev  eth0 root handle 1: htb default 1
>       $TC class  add  dev  eth0        parent 1:  classid  1:1        htb 
> rate 100000kbit ceil 100000kbit burst 24k cburst 24k
>       $TC class  add  dev  eth0        parent 1:1 classid 1:10        htb 
> rate 20000kbit ceil 20000kbit burst 24k cburst 24k
>
> and class 1:10 shapes the traffic to 19900kbit instead of 20000kbit 
> (bandwidth tests made with ftp and iperf)


That seems pretty close. What values do you get with older kernels?