Linux Shell脚本查看NUMA信息

Nova在NFV场景下会提供NUMA相关高级特性，这里提供一个脚本查看计算节点的NUMA相关信息。

#!/bin/bash function get_nr_processor() { grep ^processor /proc/cpuinfo | wc -l } function get_nr_socket() { grep physical id /proc/cpuinfo | awk -F: { print $2 | “sort -un”} | wc -l } function get_nr_siblings() { grep siblings /proc/cpuinfo | awk -F: { print $2 | “sort -un”} } function get_nr_cores_of_socket() { grep cpu cores /proc/cpuinfo | awk -F: { print $2 | “sort -un”} } echo ===== CPU Topology Table ===== echo echo +————–+———+———–+ echo | Processor ID | Core ID | Socket ID | echo +————–+———+———–+ while read line; do if [ -z “$line” ]; then printf | %-12s | %-7s | %-9s |n $p_id $c_id $s_id echo +————–+———+———–+ continue fi if echo “$line” | grep -q “^processor”; then p_id=`echo “$line” | awk -F: {print $2} | tr -d ` fi if echo “$line” | grep -q “^core id”; then c_id=`echo “$line” | awk -F: {print $2} | tr -d ` fi if echo “$line” | grep -q “^physical id”; then s_id=`echo “$line” | awk -F: {print $2} | tr -d ` fi done < /proc/cpuinfo echo awk -F: { if ($1 ~ /processor/) { gsub(/ /,””,$2); p_id=$2; } else if ($1 ~ /physical id/){ gsub(/ /,””,$2); s_id=$2; arr[s_id]=arr[s_id] ” ” p_id } } END{ for (i in arr) printf “Socket %s:%sn”, i, arr[i]; } /proc/cpuinfo echo echo ===== CPU Info Summary ===== echo nr_processor=`get_nr_processor` echo “Logical processors: $nr_processor” nr_socket=`get_nr_socket` echo “Physical socket: $nr_socket” nr_siblings=`get_nr_siblings` echo “Siblings in one socket: $nr_siblings” nr_cores=`get_nr_cores_of_socket` echo “Cores in one socket: $nr_cores” let nr_cores*=nr_socket echo “Cores in total: $nr_cores” if [ “$nr_cores” = “$nr_processor” ]; then echo “Hyper-Threading: off” else echo “Hyper-Threading: on” fi echo echo ===== END =====

查询结果示例：

===== CPU Topology Table ===== +————–+———+———–+ | Processor ID | Core ID | Socket ID | +————–+———+———–+ | 0 | 0 | 1 | +————–+———+———–+ | 1 | 1 | 1 | +————–+———+———–+ | 2 | 9 | 1 | +————–+———+———–+ | 3 | 10 | 1 | +————–+———+———–+ | 4 | 0 | 0 | +————–+———+———–+ | 5 | 1 | 0 | +————–+———+———–+ | 6 | 9 | 0 | +————–+———+———–+ | 7 | 10 | 0 | +————–+———+———–+ | 8 | 0 | 1 | +————–+———+———–+ | 9 | 1 | 1 | +————–+———+———–+ | 10 | 9 | 1 | +————–+———+———–+ | 11 | 10 | 1 | +————–+———+———–+ | 12 | 0 | 0 | +————–+———+———–+ | 13 | 1 | 0 | +————–+———+———–+ | 14 | 9 | 0 | +————–+———+———–+ | 15 | 10 | 0 | +————–+———+———–+ Socket 0: 4 5 6 7 12 13 14 15 Socket 1: 0 1 2 3 8 9 10 11 ===== CPU Info Summary ===== Logical processors: 16 Physical socket: 2 Siblings in one socket: 8 Cores in one socket: 4 Cores in total: 8 Hyper-Threading: on ===== END =====