[LARTC] PowerPC can not accurately run HTM

[LARTC] PowerPC can not accurately run HTM

[Nai-Hsien]

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I am running HTB on a PowerPC platform and using following script to do rate limit.
When I set rate of class 1:11 lower than 4mbit, I can get traffic rate close to the setting.
However, if I set the rate higher than 4mbit, I will get much
lower bandwidth (roughly 4.5mbit) than the setting, no matter how big the setting is.
To verify the script, I run it on PC with then I got correct result.

Could anybody give me some hints?

Thank you
Dennis

tc qdisc add dev wan1 root handle 1: htb default 10
tc class add dev wan1 parent 1: classid 1:1 htb rate 100mbit
tc class add dev wan1 parent 1:1 classid 1:10 htb rate 1mbit ceil 2mbit
tc class add dev wan1 parent 1:1 classid 1:11 htb rate 8mbit ceil 8mbit
tc filter add dev wan1 protocol ip parent 1: u32 match ip dst 11.1.1.1 flowid 1:11


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