[LARTC] HTB High CPU Utilization

[Gerardo Arceri]

> or example, let's say you have 2000kbit of total
> bandwidth for output and that you are running both and
> http and an ftp server.
>
> Now let's say that you have two users that want to connect
> to your machine and that both of them can potentially use
> all of your output bandwidth. One of them want to connect
> to the http server and the other to the ftp one.
>
> So you tell tc to assign http traffic to class 3 that can
> use only up to half the total output bandwidth, 1000kbit,
> but you don't say anything about the ftp traffic.
>
> If both the user tries to connect at the same time they of
> course use the whole output bandwidth but, since there is
> one kind of traffic that isn't "regulated" (it is assigned
> to class 10 that doesn't exist), there is a continuos
> fight between the two of them and the speed at which they
> download is very irregular.
>
>
> Have I understood well?


Yes you have, that's exactly my setup, i have a 100Mbps Ethernet 
connection to the router which has a 20Mpbs pipe to the net,
I only want to limit certain ips from using too much outgoing pipe
 > tc qdisc del dev eth0 root
 > tc qdisc add dev eth0 root handle 10: htb default 10
 > tc class add dev eth0 parent 10: classid 10:3 htb rate 1000kbit ceil=20
 > 1000kbit
 > tc filter add dev eth0 parent 10: protocol ip prio 3 handle 2 fw classid=
I thought that by not specifying a default rate the traffice  would go 
unshaped
So tc is a game of all or nothing ? i mean, i can't say to tc that all 
traffic except the one coming from X IP doesn't get a class ?