Re: What is: "Consider r2q change"

Linux Advanced Routing and Traffic Control

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Thanks!
My command was:
$TC class add dev $IF parent 1: classid 1:1 htb rate $MAX_UL ceil $MAX_UL
So I added the quantum 1524 at the end.

Oliver

gypsy wrote:
"Oliver Schulze L." wrote:
  
Hi,
I'm getting this warning/error in /var/log/messages:

May 26 18:21:05 mail kernel: HTB: quantum of class 10010 is small.
Consider r2q change.

Its a big deal? What should I do?

Many thanks
Oliver

--
Oliver Schulze L.
<oliver@xxxxxxxxxxxxx>
    

If you are sure you REALLY want the rate that tc is complaining about,
you should manually set quantum, probably to 1514 (look at quantum for a
rate that does not generate this message for size hints).  htb is
telling you that the rate is a lot less than the rate of the parent;
experience says 31% or less of the parent rate generates this message.

tc class add dev eth1 parent 1:1 classid 1:30 htb rate $RATE ceil $CEIL
burst 5k quantum 1514 prio 3

--
gypsy
  

-- 
Oliver Schulze L.
<oliver@xxxxxxxxxxxxx>
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