4

I'm using Debian 9(stretch edition) kernel 4.9., hp dl385 g7 server with 32 cpu cores. NIC queues are tied to processor cores. Server is shaping traffic (iproute2 and htb discipline + skbinfo + ipset + ifb) and filtering some rules by iptables.

At that moment, when traffic goes up about 1gbit/s cpu is very high loaded. Perf tool tells me that kernel module native_queued_spin_lock_slowpath loading cpu about 40%.

Who knows how to find the problem?

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.