Show NUMA topology

NUMA nodes, CPU assignment, and memory distribution

numactl --hardware
tool
linux133 commands
tags
linuxhardwareperformance

More linux commands

  • TCP tuning: increase backlog
    sysctl -w net.core.somaxconn=65535 net.ipv4.tcp_max_syn_backlog=65535

    Increase socket listen backlog for high-connection services

  • TCP tuning: enable BBR
    sysctl -w net.core.default_qdisc=fq net.ipv4.tcp_congestion_control=bbr

    Enable Google BBR congestion control for better throughput

  • Show open UDP sockets
    ss -ulnp

    All UDP listening sockets with process info

  • Bind process to CPU cores
    taskset -cp 0,1 <pid>

    Pin a running process to specific CPU cores

  • Show hardware interrupts
    watch -n1 'cat /proc/interrupts | head -30'

    Per-CPU interrupt counts, updated every second

all 133 linux commands