TCP tuning: enable BBR linux
Enable Google BBR congestion control for better throughput
sysctl -w net.core.default_qdisc=fq net.ipv4.tcp_congestion_control=bbr
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Show open UDP sockets
ss -ulnp
Bind process to CPU cores
taskset -cp 0,1 <pid>
Show hardware interrupts
watch -n1 'cat /proc/interrupts | head -30'
Show process limits
cat /proc/<pid>/limits
Increase system file descriptor limit
ulimit -n 1048576 && echo '* soft nofile 1048576
* hard nofile 1048576' >> /etc/security/limits.conf