Linux Shell脚本查看NUMA信息
这篇文章主要介绍了Linux Shell脚本查看NUMA信息,本文直接给出脚本实现代码,需要的朋友可以参考下
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。
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#!/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:%s/n", 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：
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===== 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 ===== |