It's a useful utils to simplify Linux network troubleshooting and performance tuning, developed in order to help Carbon Reductor techsupport and automate the whole linux performance tuning process out of box (ok, except the best RSS layout detection). It's now in production usage with 300+ deployment and save us a lot of time with hardware and software settings debugging. Should work well with Python 2.6 and Python 2.7. Inspired by packagecloud's blog post.

pip install netutils-linux

All these top-like utils don't require root priveledges or sudo usage. So you can install and use them as non-priveledged user if you care about security.

pip install --user netutils-linux

Brief explanation about highlighting colors for CPU and device groups: green and red are for NUMA-nodes, blue and yellow for CPU sockets. Screenshots are taken from different hosts with different hardware.

Most useful util in this repo that includes all top-like utils and allow to monitor interrupts, soft interrupts, network processing statistic for devices and CPUs.

• Show you a rate of interrupts
• based on /proc/interrupts file
• Hides the interrupts with small rate to show a better picture.

• Show you a rate of receiving/transmitting packets
• Based on /proc/softirqs

• Shows how many packets/bytes network interface receives/transmite and how many errors happened
• Based on /sys/class/net/XXX/statistic/YYY files

Shows various statistic of packets processing per CPU.