Shell脚本分析服务器性能

不念不忘少年蓝@ 2023-06-05 08:57 109阅读 0赞

概述

我们原先在服务器上想分析性能指标，需要执行一系列的linux命令。对于linux命令不熟悉的人来说，比较困难

现在有一套集成的shell脚本，把常用的linux命令都包含在里面，一键式分析性能瓶颈

脚本功能

1、查看CPU利用率与负载（top、vmstat、sar）

2、查看磁盘、Inode利用率与I/O负载（df、iostat、iotop、sar、dstat）

3、查看内存利用率（free、vmstat）

4、查看TCP连接状态（netstat、ss）

5、查看CPU与内存占用最高的10个进程（top、ps）

6、查看网络流量（ifconfig、iftop、iptraf）

脚本如下

  1. #!/bin/bash
  2. #
  3. os_check() {
  4.         if [ -e /etc/redhat-release ]; then
  5.                 REDHAT=`cat /etc/redhat-release |cut -d' '  -f1`
  6.         else
  7.                 DEBIAN=`cat /etc/issue |cut -d' ' -f1`
  8.         fi
  9.         if [ "$REDHAT" == "CentOS" -o "$REDHAT" == "Red" ]; then
  10.                 P_M=yum
  11.         elif [ "$DEBIAN" == "Ubuntu" -o "$DEBIAN" == "ubutnu" ]; then
  12.                 P_M=apt-get
  13.         else
  14.                 Operating system does not support.
  15.                 exit 1
  16.         fi
  17. }
  18. if [ $LOGNAME != root ]; then
  19.     echo "Please use the root account operation."
  20.     exit 1
  21. fi
  22. if ! which vmstat &>/dev/null; then
  23.         echo "vmstat command not found, now the install."
  24.         sleep 1
  25.         os_check
  26.         $P_M install procps -y
  27.         echo "-----------------------------------------------------------------------"
  28. fi
  29. if ! which iostat &>/dev/null; then
  30.         echo "iostat command not found, now the install."
  31.         sleep 1
  32.         os_check
  33.         $P_M install sysstat -y
  34.         echo "-----------------------------------------------------------------------"
  35. fi
  37. while true; do
  38.     select input in cpu_load disk_load disk_use disk_inode mem_use tcp_status cpu_top10 mem_top10 traffic quit; do
  39.         case $input in
  40.             cpu_load)
  41.                 #CPU利用率与负载
  42.                 echo "---------------------------------------"
  43.                 i=1
  44.                 while [[ $i -le 3 ]]; do
  45.                     echo -e "\033[32m  参考值${i}\033[0m"
  46.                     UTIL=`vmstat |awk '{if(NR==3)print 100-$15"%"}'`
  47.                     USER=`vmstat |awk '{if(NR==3)print $13"%"}'`
  48.                     SYS=`vmstat |awk '{if(NR==3)print $14"%"}'`
  49.                     IOWAIT=`vmstat |awk '{if(NR==3)print $16"%"}'`
  50.                     echo "Util: $UTIL"
  51.                     echo "User use: $USER"
  52.                     echo "System use: $SYS"
  53.                     echo "I/O wait: $IOWAIT"
  54.                     i=$(($i+1))
  55.                     sleep 1
  56.                 done
  57.                 echo "---------------------------------------"
  58.                 break
  59.                 ;;
  60.             disk_load)
  61.                 #硬盘I/O负载
  62.                 echo "---------------------------------------"
  63.                 i=1
  64.                 while [[ $i -le 3 ]]; do
  65.                     echo -e "\033[32m  参考值${i}\033[0m"
  66.                     UTIL=`iostat -x -k |awk '/^[v|s]/{OFS=": ";print $1,$NF"%"}'`
  67.                     READ=`iostat -x -k |awk '/^[v|s]/{OFS=": ";print $1,$6"KB"}'`
  68.                     WRITE=`iostat -x -k |awk '/^[v|s]/{OFS=": ";print $1,$7"KB"}'`
  69.                     IOWAIT=`vmstat |awk '{if(NR==3)print $16"%"}'`
  70.                     echo -e "Util:"
  71.                     echo -e "${UTIL}"
  72.                     echo -e "I/O Wait: $IOWAIT"
  73.                     echo -e "Read/s:\n$READ"
  74.                     echo -e "Write/s:\n$WRITE"
  75.                     i=$(($i+1))
  76.                     sleep 1
  77.                 done
  78.                 echo "---------------------------------------"
  79.                 break
  80.                 ;;
  81.             disk_use)
  82.                 #硬盘利用率
  83.                 DISK_LOG=/tmp/disk_use.tmp
  84.                 DISK_TOTAL=`fdisk -l |awk '/^Disk.*bytes/&&/\/dev/{printf $2" ";printf "%d",$3;print "GB"}'`
  85.                 USE_RATE=`df -h |awk '/^\/dev/{print int($5)}'`
  86.                 for i in $USE_RATE; do
  87.                     if [ $i -gt 90 ];then
  88.                         PART=`df -h |awk '{if(int($5)=='''$i''') print $6}'`
  89.                         echo "$PART = ${i}%" >> $DISK_LOG
  90.                     fi
  91.                 done
  92.                 echo "---------------------------------------"
  93.                 echo -e "Disk total:\n${DISK_TOTAL}"
  94.                 if [ -f $DISK_LOG ]; then
  95.                     echo "---------------------------------------"
  96.                     cat $DISK_LOG
  97.                     echo "---------------------------------------"
  98.                     rm -f $DISK_LOG
  99.                 else
  100.                     echo "---------------------------------------"
  101.                     echo "Disk use rate no than 90% of the partition."
  102.                     echo "---------------------------------------"
  103.                 fi
  104.                 break
  105.                 ;;
  106.             disk_inode)
  107.                 #硬盘inode利用率
  108.                 INODE_LOG=/tmp/inode_use.tmp
  109.                 INODE_USE=`df -i |awk '/^\/dev/{print int($5)}'`
  110.                 for i in $INODE_USE; do
  111.                     if [ $i -gt 90 ]; then
  112.                         PART=`df -h |awk '{if(int($5)=='''$i''') print $6}'`
  113.                         echo "$PART = ${i}%" >> $INODE_LOG
  114.                     fi
  115.                 done
  116.                 if [ -f $INODE_LOG ]; then
  117.                     echo "---------------------------------------"
  118.                     rm -f $INODE_LOG
  119.                 else
  120.                     echo "---------------------------------------"
  121.                     echo "Inode use rate no than 90% of the partition."
  122.                     echo "---------------------------------------"
  123.                 fi
  124.                 break
  125.                 ;;
  126.             mem_use)
  127.                 #内存利用率
  128.                 echo "---------------------------------------"
  129.                 MEM_TOTAL=`free -m |awk '{if(NR==2)printf "%.1f",$2/1024}END{print "G"}'`
  130.                 USE=`free -m |awk '{if(NR==3) printf "%.1f",$3/1024}END{print "G"}'`
  131.                 FREE=`free -m |awk '{if(NR==3) printf "%.1f",$4/1024}END{print "G"}'`
  132.                 CACHE=`free -m |awk '{if(NR==2) printf "%.1f",($6+$7)/1024}END{print "G"}'`
  133.                 echo -e "Total: $MEM_TOTAL"
  134.                 echo -e "Use: $USE"
  135.                 echo -e "Free: $FREE"
  136.                 echo -e "Cache: $CACHE"
  137.                 echo "---------------------------------------"
  138.                 break
  139.                 ;;
  140.             tcp_status)
  141.                 #网络连接状态
  142.                 echo "---------------------------------------"
  143.                 COUNT=`netstat -antp |awk '{status[$6]++}END{for(i in status) print i,status[i]}'`
  144.                 echo -e "TCP connection status:\n$COUNT"
  145.                 echo "---------------------------------------"
  146.                 ;;
  147.             cpu_top10)
  148.                 #占用CPU高的前10个进程
  149.                 echo "---------------------------------------"
  150.                 CPU_LOG=/tmp/cpu_top.tmp
  151.                 i=1
  152.                 while [[ $i -le 3 ]]; do
  153.                     #ps aux |awk '{if($3>0.1)print "CPU: "$3"% -->",$11,$12,$13,$14,$15,$16,"(PID:"$2")" |"sort -k2 -nr |head -n 10"}' > $CPU_LOG
  154.                     ps aux |awk '{if($3>0.1){
  155.     {printf "PID: "$2" CPU: "$3"% --> "}for(i=11;i<=NF;i++)if(i==NF)printf $i"\n";else printf $i}}' |sort -k4 -nr |head -10 > $CPU_LOG
  156.                     #循环从11列（进程名）开始打印，如果i等于最后一行，就打印i的列并换行，否则就打印i的列
  157.                     if [[ -n `cat $CPU_LOG` ]]; then
  158.                        echo -e "\033[32m  参考值${i}\033[0m"
  159.                        cat $CPU_LOG
  160.                        > $CPU_LOG
  161.                     else
  162.                         echo "No process using the CPU." 
  163.                         break
  164.                     fi
  165.                     i=$(($i+1))
  166.                     sleep 1
  167.                 done
  168.                 echo "---------------------------------------"
  169.                 break
  170.                 ;;
  171.             mem_top10)
  172.                 #占用内存高的前10个进程
  173.                 echo "---------------------------------------"
  174.                 MEM_LOG=/tmp/mem_top.tmp
  175.                 i=1
  176.                 while [[ $i -le 3 ]]; do
  177.                     #ps aux |awk '{if($4>0.1)print "Memory: "$4"% -->",$11,$12,$13,$14,$15,$16,"(PID:"$2")" |"sort -k2 -nr |head -n 10"}' > $MEM_LOG
  178.                     ps aux |awk '{if($4>0.1){
  179.     {printf "PID: "$2" Memory: "$3"% --> "}for(i=11;i<=NF;i++)if(i==NF)printf $i"\n";else printf $i}}' |sort -k4 -nr |head -10 > $MEM_LOG
  180.                     if [[ -n `cat $MEM_LOG` ]]; then
  181.                         echo -e "\033[32m  参考值${i}\033[0m"
  182.                         cat $MEM_LOG
  183.                         > $MEM_LOG
  184.                     else
  185.                         echo "No process using the Memory."
  186.                         break
  187.                     fi
  188.                     i=$(($i+1))
  189.                     sleep 1
  190.                 done
  191.                 echo "---------------------------------------"
  192.                 break
  193.                 ;;
  194.             traffic)
  195.                 #查看网络流量
  196.                 while true; do
  197.                     read -p "Please enter the network card name(eth[0-9] or em[0-9]): " eth
  198.                     #if [[ $eth =~ ^eth[0-9]$ ]] || [[ $eth =~ ^em[0-9]$ ]] && [[ `ifconfig |grep -c "\<$eth\>"` -eq 1 ]]; then
  199.                     if [ `ifconfig |grep -c "\<$eth\>"` -eq 1 ]; then
  200.                             break
  201.                     else
  202.                         echo "Input format error or Don't have the card name, please input again."
  203.                     fi
  204.                 done
  205.                 echo "---------------------------------------"
  206.                 echo -e " In ------ Out"
  207.                 i=1
  208.                 while [[ $i -le 3 ]]; do
  209.                     #OLD_IN=`ifconfig $eth |awk '/RX bytes/{print $2}' |cut -d: -f2`
  210.                     #OLD_OUT=`ifconfig $eth |awk '/RX bytes/{print $6}' |cut -d: -f2`
  211.                     OLD_IN=`ifconfig $eth |awk -F'[: ]+' '/bytes/{if(NR==8)print $4;else if(NR==5)print $6}'`
  212.                     #CentOS6和CentOS7 ifconfig输出进出流量信息位置不同，CentOS6中RX与TX行号等于8，CentOS7中RX行号是5，TX行号是5，所以就做了个判断.       
  213.                     OLD_OUT=`ifconfig $eth |awk -F'[: ]+' '/bytes/{if(NR==8)print $9;else if(NR==7)print $6}'`
  214.                     sleep 1
  215.                     NEW_IN=`ifconfig $eth |awk -F'[: ]+' '/bytes/{if(NR==8)print $4;else if(NR==5)print $6}'`
  216.                     NEW_OUT=`ifconfig $eth |awk -F'[: ]+' '/bytes/{if(NR==8)print $9;else if(NR==7)print $6}'`
  217.                     IN=`awk 'BEGIN{printf "%.1f\n",'$((${NEW_IN}-${OLD_IN}))'/1024/128}'`
  218.                     OUT=`awk 'BEGIN{printf "%.1f\n",'$((${NEW_OUT}-${OLD_OUT}))'/1024/128}'`
  219.                     echo "${IN}MB/s ${OUT}MB/s"
  220.                     i=$(($i+1))
  221.                     sleep 1
  222.                 done
  223.                 echo "---------------------------------------"
  224.                 break
  225.                 ;;
  226.                         quit)
  227.                                 exit 0
  228.                                 ;;
  229.                *)
  230.                     echo "---------------------------------------"
  231.                     echo "Please enter the number." 
  232.                     echo "---------------------------------------"
  233.                     break
  234.                     ;;
  235.         esac
  236.     done
  237. done

运行效果如下

# sh show_sys_info.sh

946454-20190909140701230-1832808051.png

1）cpu_load：分析cpu

946454-20190909140831492-1522186282.png

util：cpu已使用百分比

user use：用户使用cpu百分比

system use：系统使用cpu百分比

I/O wait：I/O等待百分比

三次刷新，间隔时间1s

2）disk_load 分析磁盘

946454-20190909141513698-920660452.png

Util：每秒磁盘处理的百分比
vda：
I/O Wait：IO等待时间
Read/s：每秒磁盘读数据量
vda：
Write/s：每秒磁盘写数据量
vda：

3）disk_use 磁盘使用情况

946454-20190909142645636-147744309.png

disk total：打印磁盘数量和磁盘分区使用情况

4）disk_inode 如果有磁盘inodo超过90%，这里会打印出来

5）mem_use 内存占用情况

946454-20190909143354116-117122201.png

Total：总内存

use：已使用内存

free：剩余内存

cache：缓存占用内存

6）tcp_status tcp状态

946454-20190909144403480-753849126.png

7）cpu_top10 占用cpu最大的十个进程

8）mem_top10 占用内存最大的十个进程

9）traffic 查看网卡进出流量

946454-20190909144959556-2088249271.png

转载于:https://www.cnblogs.com/Zfc-Cjk/p/11490648.html

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