[Bloat] How can I tell if fq_codel is running?
Kenneth Porter
shiva at sewingwitch.com
Tue Jul 30 18:34:21 EDT 2019
I'm running CentOS 7 on a Dell R230 as a small office router. It's on a
slow ADSL link, 1.5 Mbps down and 150 kbps up. The kernel supports
fq_codel, as does the tg3 driver used by the interfaces.
In the past I've run the Wondershaper script and now I'm hoping the new
codel improves on that. I think it's installed but I don't see its name
in a "tc show". Should I see it there? Is there additional setup I need
to do?
The system seems responsive but I've been tasked with prioritizing the
network for certain users. Before, I set up some buckets in the
wondershaper for that. I'm now trying to figure out how that's supposed
to work with codel, which is ostensibly "knob-free".
[root at saruman ~]# tc -s class show dev em2
class mq :1 root
Sent 127961591021 bytes 412946653 pkt (dropped 0, overlimits 0
requeues 2726)
backlog 0b 0p requeues 2726
class mq :2 root
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
class mq :3 root
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
class mq :4 root
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
class mq :5 root
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
[root at saruman ~]# sysctl net.core.default_qdisc
net.core.default_qdisc = fq_codel
More information about the Bloat
mailing list