On Wed, 2017-09-13 at 20:12 +0300, Denys Fedoryshchenko wrote: > For my case, as load increased now, i am hitting same issue (i tried to > play with quantum / bursts as well, didnt helped): > > tc -s -d class show dev eth3.777 classid 1:111;sleep 5;tc -s -d class > show dev eth3.777 classid 1:111 > class htb 1:111 parent 1:1 leaf 111: prio 0 quantum 50000 rate 20Gbit > ceil 100Gbit linklayer ethernet burst 100000b/1 mpu 0b cburst 100000b/1 > mpu 0b level 0 > Sent 864151559 bytes 730566 pkt (dropped 15111, overlimits 0 requeues > 0) > backlog 73968000b 39934p requeues 0 > lended: 499867 borrowed: 0 giants: 0 > tokens: 608 ctokens: 121 >
You have drops (and ~40,000 packets in backlog) > class htb 1:111 parent 1:1 leaf 111: prio 0 quantum 50000 rate 20Gbit > ceil 100Gbit linklayer ethernet burst 100000b/1 mpu 0b cburst 100000b/1 > mpu 0b level 0 > Sent 1469352160 bytes 1243649 pkt (dropped 42933, overlimits 0 requeues > 0) > backlog 82536047b 39963p requeues 0 > lended: 810475 borrowed: 0 giants: 0 > tokens: 612 ctokens: 122 > > (1469352160-864151559)/5*8 > 968320961.60000000000000000000 > Less than 1Gbit and it's being throttled It is not : "overlimits 0" means this class was not throttled.
