[Bloat] How can I tell if fq_codel is running?

[Kenneth Porter]

--On Tuesday, July 30, 2019 4:45 PM -0700 Stephen Hemminger 
<stephen at networkplumber.org> wrote:

> Try:
> root at OpenWrt:~# tc qdisc show

Thanks, that revealed it:

[root at saruman ~]# tc qdisc show
qdisc noqueue 0: dev lo root refcnt 2
qdisc mq 0: dev em1 root
qdisc fq_codel 0: dev em1 parent :1 limit 10240p flows 1024 quantum 1514 
target 5.0ms interval 100.0ms memory_limit 32Mb ecn
qdisc mq 0: dev em2 root
qdisc fq_codel 0: dev em2 parent :1 limit 10240p flows 1024 quantum 1514 
target 5.0ms interval 100.0ms memory_limit 32Mb ecn
qdisc fq_codel 0: dev idrac root refcnt 2 limit 10240p flows 1024 quantum 
1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn
qdisc fq_codel 0: dev tun0 root refcnt 2 limit 10240p flows 1024 quantum 
1500 target 5.0ms interval 100.0ms memory_limit 32Mb ecn

(em1 is the internal LAN interface and em2 is the Internet side.)