[LARTC] wrong shaping

[LARTC] wrong shaping

[victor]

I have a class parent and a class child;
In the child class I have 6 dropped pachets, but in the parent class I
have none(in teh example configuration parent is 1:9 and child is 1:2eb).
Is this possible, or I have somethimg wrong in the configuration?
My exact problem is:
-I have many clases that have 1Kbit rate and 500Kbit ceil.
-I have HZ\x1000, compiled in the kernel.

When I create a class with ratedKbit, ceildKbit, this class will not
transfer at this exact rate. The rate will repat jumping from a few Kbits
to 64Kbits and back, but will never stay at the ratedKbit.

More than that, many clases that have rate=1Kbit, ceilP0Kbit will have a
better transfer than the class with rate 64Kbit.

My configuration is:
tc qdisc add dev eth1 root handle 1: htb default 2

tc class add dev eth1 parent 1: classid 1:9 htb rate 1400Kbit prio 0
quantum 2000

tc class add dev eth1 parent 1: classid 1:2 htb rate 9999Kbit prio 0
quantum 2000

Just one class and 1 filter(thay are many):

tc class add dev eth1 parent 1:9 classid 1:2eb htb rate 64Kbit ceil
500Kbit prio 0 quantum 2000

tc filter add dev eth1 parent 1: prio 1 handle 7: protocol ip u32 divisor 256
tc filter add dev eth1 parent 1: prio 1 protocol ip u32 ht 800:: match ip
dst xxx.xxx.xxx.0/24 hashkey mask 0x000000ff at 16 link 7:
tc filter add dev eth1 prio 1 protocol ip u32 ht 2:eb match ip src
xxx.xxx.xxx.xxx flowid 1:2eb

Configuration for upload is simetrical.

Thank you

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Re: [LARTC] wrong shaping

[Stef Coene]

On Saturday 08 November 2003 17:55, victor wrote:
> I have a class parent and a class child;
> In the child class I have 6 dropped pachets, but in the parent class I
> have none(in teh example configuration parent is 1:9 and child is 1:2eb).
> Is this possible, or I have somethimg wrong in the configuration?
> My exact problem is:
> -I have many clases that have 1Kbit rate and 500Kbit ceil.
> -I have HZ\x1000, compiled in the kernel.
>
> When I create a class with ratedKbit, ceildKbit, this class will not
> transfer at this exact rate. The rate will repat jumping from a few Kbits
> to 64Kbits and back, but will never stay at the ratedKbit.
How do you measure this ?

> More than that, many clases that have rate=1Kbit, ceilP0Kbit will have a
> better transfer than the class with rate 64Kbit.
>
> My configuration is:
> tc qdisc add dev eth1 root handle 1: htb default 2
>
> tc class add dev eth1 parent 1: classid 1:9 htb rate 1400Kbit prio 0
> quantum 2000
>
> tc class add dev eth1 parent 1: classid 1:2 htb rate 9999Kbit prio 0
> quantum 2000
>
> Just one class and 1 filter(thay are many):
>
> tc class add dev eth1 parent 1:9 classid 1:2eb htb rate 64Kbit ceil
> 500Kbit prio 0 quantum 2000
>
> tc filter add dev eth1 parent 1: prio 1 handle 7: protocol ip u32 divisor
> 256 tc filter add dev eth1 parent 1: prio 1 protocol ip u32 ht 800:: match
> ip dst xxx.xxx.xxx.0/24 hashkey mask 0x000000ff at 16 link 7:
> tc filter add dev eth1 prio 1 protocol ip u32 ht 2:eb match ip src
> xxx.xxx.xxx.xxx flowid 1:2eb
>
> Configuration for upload is simetrical.

Stef

-- 
stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.openprojects.net

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