Linux Shell脚本怎么查看NUMA信息

本篇内容主要讲解“linux shell脚本怎么查看NUMA信息”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Linux Shell脚本怎么查看NUMA信息”吧!

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/bashfunction 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 $2 | "sort -un"}'}echo '===== CPU Topology Table ====='echoecho '+--------------+---------+-----------+'echo '| Processor ID | Core ID | Socket ID |'echo '+--------------+---------+-----------+'while read line; do  if [ -z "$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 ' '`   fidone < /proc/cpuinfoechoawk -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/cpuinfoechoecho '===== CPU Info Summary ====='echonr_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_socketecho "Cores in total: $nr_cores"if [ "$nr_cores" = "$nr_processor" ]; then  echo "Hyper-Threading: off"else  echo "Hyper-Threading: on"fiechoecho '===== 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 15Socket 1: 0 1 2 3 8 9 10 11===== CPU Info Summary =====Logical processors: 16Physical socket: 2Siblings in one socket: 8Cores in one socket: 4Cores in total: 8Hyper-Threading: on===== END =====

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