On Mon, May 4, 2020 at 10:46 AM Cong Wang <xiyou.wangc...@gmail.com> wrote:
>
> Regarding to your test result above, I think I saw some difference
> on my side, I have no idea why you didn't see any difference. Please
> let me collect the data once I setup the test environment shortly today.
I tried to emulate your test case in my VM, here is the script I use:
====
ip li set dev dummy0 up
tc qd add dev dummy0 root handle 1: htb default 1
for i in `seq 1 1000`
do
tc class add dev dummy0 parent 1:0 classid 1:$i htb rate 1mbit ceil 1.5mbit
tc qd add dev dummy0 parent 1:$i fq_codel
done
time tc qd del dev dummy0 root
====
And this is the result:
Before my patch:
real 0m0.488s
user 0m0.000s
sys 0m0.325s
After my patch:
real 0m0.180s
user 0m0.000s
sys 0m0.132s
This is an obvious improvement, so I have no idea why you didn't
catch any difference.
Thanks.
