shell实现对cpu、mem、disk、网速的各个指标进行监控
今天正在公司歇着，突然被提了个需求：将CPU的各项指标参数化，查询，哪还等什么呢？开整......：
摸索一：
# CPU0: 0.0% usr 54.5% sys 0.0% nic 45.4% idle 0.0% io 0.0% irq 0.0% sirq # CPU1: 0.0% usr 0.0% sys 0.0% nic 100% idle 0.0% io 0.0% irq 0.0% sirq #!/bin/sh top -n 1 <<EOF >test_cpu.log c EOF sed -e 's/[[:space:]][[:space:]]*/ /g' test_cpu.log >Processed.txt cpu0_use=$(find Processed.txt |xargs grep 'CPU0:'|cut -d ' ' -f 2) # echo "========================cpu0_use: $cpu0_use========================" cpu1_use=$(find Processed.txt |xargs grep 'CPU1:'|cut -d ' ' -f 2) # echo "========================cpu1_use: $cpu1_use========================" cpu0_sys=$(find Processed.txt |xargs grep 'CPU0:'|cut -d ' ' -f 6) # echo "========================cpu0_sys: $cpu0_sys========================" cpu1_sys=$(find Processed.txt |xargs grep 'CPU1:'|cut -d ' ' -f 6) # echo "========================cpu1_sys: $cpu0_sys========================" cpu0_user=$(find Processed.txt |xargs grep 'CPU0:'|cut -d ' ' -f 4) # echo "========================cpu0_user: $cpu0_user========================" cpu1_user=$(find Processed.txt |xargs grep 'CPU1:'|cut -d ' ' -f 4) # echo "========================cpu1_user: $cpu0_user========================" cpu0_idle=$(find Processed.txt |xargs grep 'CPU0:'|cut -d ' ' -f 10) # echo "========================cpu0_idle: $cpu0_idle========================" cpu1_idle=$(find Processed.txt |xargs grep 'CPU1:'|cut -d ' ' -f 10) # echo "========================cpu1_idle: $cpu0_idle========================" cpu0_iowait=$(find Processed.txt |xargs grep 'CPU0:'|cut -d ' ' -f 12) # echo "========================cpu0_iowait: $cpu0_iowait========================" cpu1_iowait=$(find Processed.txt |xargs grep 'CPU1:'|cut -d ' ' -f 12) # echo "========================cpu1_iowait: $cpu0_iowait========================" if [ -n "$1" ];then case "$1" in cpu0_use) echo "========================cpu0_use: $cpu0_use========================";; cpu1_use) echo "========================cpu1_use: $cpu1_use========================";; cpu0_sys) echo "========================cpu0_sys: $cpu0_sys========================";; cpu1_sys) echo "========================cpu1_sys: $cpu1_sys========================";; cpu0_user) echo "========================cpu0_user: $cpu0_user========================";; cpu1_user) echo "========================cpu1_user: $cpu1_user========================";; cpu0_idle) echo "========================cpu0_idle: $cpu0_idle========================";; cpu1_idle) echo "========================cpu1_idle: $cpu1_idle========================";; cpu0_iowait) echo "========================cpu0_iowait: $cpu0_iowait========================";; cpu1_iowait) echo "========================cpu1_iowait: $cpu1_iowait========================";; esac fi
注意：sed -e 's/[[:space:]][[:space:]]*/ /g' test_cpu.log 这个命令可以将.log文件中的空格去掉。
摸索二：
#!/bin/sh mpstat -P ALL 2 3 |grep '^Average' >tmp.log case "$2" in cpu_usr) awk -v t="$1" '{if($2==t) {print $3}}' tmp.log;; cpu_sys) awk -v t="$1" '{if($2==t) {print $5}}' tmp.log;; cpu_idle) awk -v t="$1" '{if($2==t) {print $11}}' tmp.log;; cpu_use) awk '/all/{print 100-$NF}' tmp.log;; esac rm -f tmp.log
==================================================================================================================================================================
通过自己对这个业务的熟悉优化了相关脚本：get_args.sh + get_net_speed.sh
# get_net_speed.sh
#!/bin/sh ethn=$1 function get_net_speed { RX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}') TX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}') sleep 1 RX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}') TX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}') clear RX=$((${RX_next}-${RX_pre})) TX=$((${TX_next}-${TX_pre})) if [[ $RX -lt 1024 ]];then RX="${RX}B/s" elif [[ $RX -gt 1048576 ]];then RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}') else RX=$(echo $RX | awk '{print $1/1024 "KB/s"}') fi if [[ $TX -lt 1024 ]];then TX="${TX}B/s" elif [[ $TX -gt 1048576 ]];then TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}') else TX=$(echo $TX | awk '{print $1/1024 "KB/s"}') fi echo "*************************************" echo -e "\033[32m Current net_card: $ethn \033[0m" echo -e "\033[32m upload: \033[0m $TX" echo -e "\033[32m download: \033[0m $RX" echo "*************************************" } get_net_speed
# get_args.sh #!/bin/sh : ' 脚本get_args.sh在执行的时候需要根据不同的查询需求,需要进行传参 例如： ./get_args.sh mem MemFree ./get_args.sh cpu 0 cpu_usr ./get_args.sh disk dd ./get_args.sh net_speed ' function mem_info() { # ^$1: 代表第一个参数为首 echo "mem_info要查询的参数如果有需要,请执行:cat /proc/meminfo,确定好自己要查询的参数!" grep "^$1:" /proc/meminfo |awk '{print $2}' } function cpu_info() { echo "mem_info要查询的主要参数有：cpu_usr、cpu_sys、cpu_idle、cpu_use" mpstat -P $1 2 3 |grep '^Average' >tmp.log case "$2" in cpu_usr) awk -v t="$1" '{if($2==t) {print $3}}' tmp.log;; cpu_sys) awk -v t="$1" '{if($2==t) {print $5}}' tmp.log;; cpu_idle) awk -v t="$1" '{if($2==t) {print $11}}' tmp.log;; cpu_use) awk '/all/{print 100-$NF}' tmp.log;; esac rm -f tmp.log } function kill_demo() { pid=$( ps -ef|egrep 'dd if' | grep -v 'grep'| awk '{print $1}') [ -n "$pid" ] && kill -2 $pid kill -9 $pid &>/dev/null # 如果kill -2 不能结束用kill -9 结束 } function disk_info() { source_path="/root/sd/p3/test_file/" [ ! -d source_path ] && mkdir -p $source_path cd $source_path [ -f disk_stats.log ] && rm -f disk_stats.log && rm -f template # 这里传参看是否进行传参进行dd [dd if=/dev/zero of=template bs=1M count=1024] [ "$1" = "dd" ] && dd if=/dev/zero of=template bs=1M count=1024 & Used=$(df -h |grep /dev/mmcblk2p3|awk '{print $5}'|sed 's/\%//g') while [ $Used -lt 9 ] do echo "Current time: $(date +'%Y-%m-%d %H:%M:%S')"|tee -a disk_stats.log Used=$(df -h |grep /dev/mmcblk2p3|awk '{print $5}'|sed 's/\%//g') echo "Used: $Used" |tee -a disk_stats.log sleep 3 [ $Used -ge 9 ] && echo "Warning: Disk_use has triggered the alarm,it will be killed and deleted!!!"|tee -a disk_stats.log && kill_demo && rm -f template && break done } function net_speed() { [ -f net_speed.log ] && rm -f net_speed.log read -p "Please provide the program running time[Unit: seconds]:" runtime start_time=$(date +%s) end_time=$((start_time + runtime)) while [ $(date +%s) -lt $end_time ] do echo "Current time: $(date +'%Y-%m-%d %H:%M:%S')"|tee -a net_speed.log sleep 5 ./get_net_speed.sh eth0|tee -a net_speed.log done } case $1 in "mem") mem_info $2;; "cpu") cpu_info $2 $3;; "net_speed") net_speed;; "disk") disk_info $2;; *) echo "error args..." esac
通过这段时间脚本的编写，也学习了不少知识点：
1）case的灵活应用，case传参只考虑传参位置即可;
2）边打印边追加至log的写法 cat xxx |tee -a $i/xx.log ;
3）awk的灵活取参;
4）有关dd：
a.会写缓存
# # 纯写
# time dd if=/dev/zero of=template bs=1M count=1024
# # 纯读
# time dd if=template of=/dev/null bs=1M count=1024
b.测试纯写入性能——相当于不写缓存，直接写裸磁盘（写1G文件）
## 纯写
# time dd if=/dev/zero of=output.file bs=8k count=128000 oflag=direct,nonblock
## 纯读
# dd if=output.file of=/dev/null bs=8k count=128000 iflag=direct,nonblock
5）获取当前目录的简洁写法：source_path=$(pwd) ;
6）还有if判断的新写法：[ ! - d/-f $i ] && xxx || xxxx ;
7） read -p 的灵活输入参数;
8）shell中的自增 let i++
9）df -h |grep /dev/mmcblk2p3|awk '{print $5}'|sed 's/\%//g' [可以取值的时候去掉%，这里的'%'可以替换成其他符号]
10）$(date +%s) 一定要注意
11）shell的整数/浮点数的 "加减乘除"
echo "scale=1;$Disk_Size*0.98-$Disk_Available" |bc # scale 控制的是小数点后几位;——>echo "scale=1;100*0.98-10" |bc
整数之间的和计算：res=$(($a+$b))
12）shell中的多行注释：
# 多行注释的常用几种方法： :<< 'BLOCK ....被注释的多行内容 BLOCK' :<< ' ....被注释的多行内容 ' : ' ....被注释的多行内容 '
最后，还有一个领导想要全部指标展示的代码：
# get_sys_info.sh
#! /bin/sh
function get_index()
{
cat << EOF
+---------------------------------------------------------------------------------+
| 欢迎使用 【系统信息检查脚本】 |
+---------------------------------------------------------------------------------+
EOF
time=1
source_path=$(pwd)
log_file=$(pwd)/mylog/
[ ! -d $log_file ] && mkdir -p $log_file
cd $log_file
rm -f *.log
read -p "Please input query times:" run_time
length=$(echo ${run_time} | wc -L)
run_time=$(expr $run_time + 1)
while :
do
if [ $time -ge $run_time ];then
echo "ALL operations have been over,exit"
exit
else
echo "CPU_info_query Times of executions："$time
echo "===============================================CPU_info_query $(date +'%Y-%m-%d %H:%M:%S') ==================================================="|tee -a $log_file/cpu_info.log
mpstat -P ALL 2 3 | grep '^Average'|awk '{printf "%-10s%-10s%-10s%-10s%-10s\n", $2 , $3 , $5 , $6 , $NF}'|tee -a $log_file/cpu_info.log
sleep 5
echo "Mem_info_query Times of executions："$time
echo "===============================================Mem_info_query $(date +'%Y-%m-%d %H:%M:%S') ==================================================="|tee -a $log_file/mem_info.log
cat /proc/meminfo|head -n 4|sed 's/\://g'|awk '{for(i=0;++i<=NF;)a[i]=a[i]?a[i] FS $i:$i}END{for(i=0;i++<(NF-1);)print a[i]}'|tee -a $log_file/mem_info.log
sleep 5
echo "Disk_info_query Times of executions："$time
echo "================================================Disk_info_query $(date +'%Y-%m-%d %H:%M:%S') =================================================="|tee -a $log_file/disk_info.log
read -p "Please enter the partition you want to query:" zone
df -h|grep Filesystem|sed -e 's/[[:space:]][[:space:]]*/ /g'|awk '{printf "%-10s%-10s%-10s%-10s%-10s\n", $2,$3,$4,$5,$6}'|tee -a $log_file/disk_info.log
df -h|grep $zone|awk '{printf "%-10s%-10s%-10s%-10s%-10s\n", $2,$3,$4,$5,$6}'|tee -a $log_file/disk_info.log
sleep 5
echo "Net_speed_query Times of executions："$time
echo "===============================================Net_speed_query $(date +'%Y-%m-%d %H:%M:%S') ==================================================="|tee -a $log_file/net_speed.log
cd $source_path
./get_net_speed.sh eth0|tee -a $log_file/net_speed.log
sleep 5
let time++
fi
done
}
get_index
更新中...【个人觉得后续要更新一下邮件提醒，类似钉钉/飞书提醒】
优化版
#!/bin/sh
: '
脚本get_sys_args.sh在执行的时候需要根据不同的查询需求,需要进行传参
例如：
./get_sys_args.sh mem MemFree/...
./get_sys_args.sh cpu 0/1/all cpu_usr/...
./get_sys_args.sh disk write w_speed/read r_speed
./get_sys_args.sh net_speed
./get_sys_args.sh Disk_wr
./get_sys_args.sh disk_dd dd
'
Log_dir=$(pwd)/log_file
[ ! -d $Log_dir ] && mkdir -p $Log_dir
function mem_info()
{
# ^$1: 代表第一个参数为首
echo "mem_info要查询的参数如果有需要,请执行:cat /proc/meminfo,确定好自己要查询的参数!"
grep "^$1:" /proc/meminfo |awk '{print $2}'
}
function cpu_info()
{
echo "cpu_info_$1 要查询的主要参数有：cpu_usr、cpu_sys、cpu_idle、cpu_use"
mpstat -P ALL 2 3 |grep '^Average' >tmp.log
case "$2" in
cpu_usr)
awk -v t="$1" '{if($2==t) {print $3}}' tmp.log;;
cpu_sys)
awk -v t="$1" '{if($2==t) {print $5}}' tmp.log;;
cpu_idle)
awk -v t="$1" '{if($2==t) {print $11}}' tmp.log;;
cpu_use)
awk -v t="$1" '{if($2==t) {print 100-$NF}}' tmp.log;; # 如果传参获取一个值的时候，可以使用但括号：awk -v t="$1" '{if($2==t) print 100-$NF}' tmp.log;;
esac
rm -f tmp.log
}
function kill_demo()
{
pid=$( ps -ef|egrep 'dd if' | grep -v 'grep'| awk '{print $1}')
[ -n "$pid" ] && kill -2 $pid
kill -9 $pid &>/dev/null # 如果kill -2 不能结束用kill -9 结束
}
function disk_info()
{
# echo $@ 查询函数传参的详情
journal=$Log_dir/disk_journal
[ ! -d $journal ] && mkdir -p $journal || [ -f $journal/*.log ] && rm -f $journal/*.log
Disk_Size=$(df -h |grep /dev/mmcblk2p3|awk '{print $2}'|sed 's/\G//g')
Disk_Available=$(df -h |grep /dev/mmcblk2p3|awk '{print $4}'|sed 's/\G//g')
Used=$(df -h |grep /dev/mmcblk2p3|awk '{print $5}'|sed 's/\%//g')
Warning_limit=$(echo "scale=0;$Disk_Size*0.1" |bc)
if [ "$1" = "write" ]; then
echo "The current disk status：Disk_Size: $Disk_Size | Disk_Available: $Disk_Available | Used %: $Used"
while [ `echo "$Disk_Available > 0" | bc` -eq 1 ]
do
[ "$2" = "w_speed" ] && echo "Please wait for writing..." || exit
[ `echo "$Disk_Available < $Warning_limit" | bc` -eq 1 ] && exit || dd if=/dev/zero of=template bs=1M count=12288 2>$journal/write_speed.log
w_speed=$(cat $journal/write_speed.log |grep 'seconds,'|awk '{print $NF}')
echo "w_speed:" $w_speed
done
elif [ "$1"="read" ]; then
[ "$2" = "r_speed" ] && echo "Please wait for reading" || exit
[ -f template ] && dd if=template of=/dev/null bs=1M count=12288 2>$journal/read_speed.log || echo "The file is not existed"
r_speed=$(cat $journal/read_speed.log|grep 'seconds,'|awk '{print $NF}' )
echo "r_speed:" $r_speed
fi
}
function disk_dd()
{
# 可以添加一个功能询问在哪个分区进行dd
journal=$Log_dir/dd_journal
[ ! -d $journal ] && mkdir -p $journal || [ -f $journal/disk_stats.log ] && rm -f $journal/disk_stats.log
[ "$1" = "dd" ] && dd if=/dev/zero of=template bs=1M count=1024 &
while true
do
echo "Current time: $(date +'%Y-%m-%d %H:%M:%S')"|tee -a $journal/disk_stats.log
Used=$(df -h |grep /dev/mmcblk2p3|awk '{print $5}'|sed 's/\%//g')
[ $Used -ge 9 ] && echo "Warning:Disk_use has exceeded the alarm,it will be deleted!!!" && kill_demo && rm -f template && break || echo "Used: $Used" |tee -a $journal/disk_stats.log
sleep 5
done
}
function Disk_wr(){
[ ! -f read_write_test.sh ] && wget http://xxx/scripts/read_write_Test/read_write_test.sh && chmod +x read_write_test.sh
# 如果这里需要对准备的数据做限制，这里需要优化
./read_write_test.sh source/ target 10
} : ' # wget_loop.sh [调用该函数，再启动另一个窗口进行执行该脚本] #!/bin/sh [ -z $1 ] && loop_time=100 || loop_time=1 for i in $(seq 1 $loop_time) do echo "==== 当前第 $i 次测试 ======" wget http://xxx:port/k510_images/v1.9-ed9472d-20230130-122418CST-root-AITestGroup/sysimage-emmc.img sleep 2 rm -f sysimage-emmc.img sleep 60 done ' function net_speed() { journal=$Log_dir/net_journal [ ! -d $journal ] && mkdir -p $journal || [ -f $journal/net_speed.log ] && rm -f $journal/net_speed.log read -p "Please provide the program running time[Unit: seconds]:" runtime start_time=$(date +%s) end_time=$((start_time + runtime)) while [ $(date +%s) -lt $end_time ] do echo "Current time: $(date +'%Y-%m-%d %H:%M:%S')"|tee -a $journal/net_speed.log sleep 5 [ -f get_net_speed.sh ] && ./get_net_speed.sh eth0|tee -a $journal/net_speed.log || echo "Please check your Script!" done } function send_report() { echo "PASS" } case $1 in "mem") mem_info $2;; "cpu") cpu_info $2 $3;; "net_speed") net_speed;; "disk") disk_info $2 $3;; "Disk_wr") Disk_wr;; "disk_dd") disk_dd $2;; *) echo "error args..." esac
当然在disk_dd这里如果需要写成传参查看指定分区代码如下：
#!/bin/sh
function disk_dd()
{
# 可以添加一个功能询问在哪个分区进行dd
journal=$Log_dir/dd_journal
[ ! -d $journal ] && mkdir -p $journal || [ -f $journal/disk_stats.log ] && rm -f $journal/disk_stats.log
[ "$1" = "dd" ] && read -p "Please enter the partition you want to query:" zone
dd_path=$(df -h |grep $zone|awk '{print $NF}')
dd if=/dev/zero of=$dd_path/template bs=1M count=1024 &
while true
do
echo "Current time: $(date +'%Y-%m-%d %H:%M:%S')"|tee -a $journal/disk_stats.log
Used=$(df -h |grep $zone|awk '{print $5}'|sed 's/\%//g')
[ $Used -ge 9 ] && echo "Warning:Disk_use has exceeded the alarm,it will be deleted!!!" && kill_demo && rm -f template && break || echo "Used: $Used" |tee -a $journal/disk_stats.log
sleep 5
done
}
disk_dd
#get_net_speed.sh
#!/bin/sh
ethn=$1
function get_net_speed {
RX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
TX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
sleep 1
RX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
TX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
clear
RX=$((${RX_next}-${RX_pre}))
TX=$((${TX_next}-${TX_pre}))
if [[ $RX -lt 1024 ]];then
RX="${RX}B/s"
elif [[ $RX -gt 1048576 ]];then
RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}')
else
RX=$(echo $RX | awk '{print $1/1024 "KB/s"}')
fi
if [[ $TX -lt 1024 ]];then
TX="${TX}B/s"
elif [[ $TX -gt 1048576 ]];then
TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}')
else
TX=$(echo $TX | awk '{print $1/1024 "KB/s"}')
fi
echo "*************************************"
echo -e "\033[32m Current net_card: $ethn \033[0m"
echo -e "\033[32m upload: \033[0m $TX"
echo -e "\033[32m download: \033[0m $RX"
echo "*************************************"
}
get_net_speed
# write_read_test.sh
#!/bin/sh ######################################################################################################################## # # 读写文件支持两种方式，直接cp或者用dd 对比文件有两种方式，用cmp或者对比md5值 # 读写测试： # 1. 把需要测试的文件放到sd卡或emmc上,文件可以在这里下载http://10.1x.1.xx:60000/test_use_files/testDownload/ # 2. 执行当前脚本 # ######################################################################################################################## source_dir='/root/sd/p3/source_data' target_dir='/root/sd/p3/target_data' [ -z "$1" ] && loop_time=100 || loop_time=$1 # 测试次数 [ -n "$2" ] && mode=$2 || mode='cp' [ ! -d $target_dir ] && mkdir -p $target_dir function msg_red() { echo -e "\033[31m $1 \033[0m" } function msg_green() { echo -e "\033[32m $1 \033[0m" } function msg_blue() { echo -e "\033[34m $1 \033[0m" } function do_test_use_MD5() { cd $source_dir for file_to_test in * do s_md5=$(echo $file_to_test|awk -F '[-.]' '{print $2}' | tr '[a-z]' '[A-Z]' ) # 拿出原文件md5 #echo "file_size_info=$(ls -lh $file_to_test | awk '{print $5}')" file_size_info=$(ls -lh $file_to_test | awk '{print $5}') file_size_number=${file_size_info:0:-1} file_size_unit=${file_size_info: -1} # 单位为G的，转换为M [ $file_size_unit = "G" ] && { file_size_unit='M'; file_size_number=$( echo "$file_size_number * 1024" | bc ) ; } start_time=$(date +%"s") if [ "$mode" = "cp" ]; then echo -n "cp $file_to_test to $target_dir ....." cp $file_to_test $target_dir && sync || echo "cp $file_to_test failed!" echo 3 > /proc/sys/vm/drop_caches &>/dev/null end_time=$(date +%"s") d_md5=$(md5sum $target_dir/$file_to_test |awk '{print $1}'| tr '[a-z]' '[A-Z]') [ $s_md5 = $d_md5 ] && echo -n " cp successed!" || echo "md5sum not match ($s_md5, $d_md5), cp failed!" fi if [ $mode = 'dd' ]; then echo -n "dd $file_to_test to $target_dir ....." dd if=$file_to_test of=$target_dir/$file_to_test conv=fsync && sync || echo "dd $file_to_test failed!" echo 3 > /proc/sys/vm/drop_caches &>/dev/null end_time=$(date +%"s") d_md5=$(md5sum $target_dir/$file_to_test |awk '{print $1}'|tr '[a-z]' '[A-Z]') [ $s_md5 = $d_md5 ] && echo -n "dd successed!" || echo "md5sum not match ($s_md5, $d_md5), dd failed!" fi duration=$((end_time - start_time)) [ $duration -eq 0 ] && duration=1 #echo "$file_size_number / $duration" speed=$(echo "scale=2; $file_size_number / $duration" | bc ) echo "speed = $speed $file_size_unit/s" rm -f $target_dir/$file_to_test done } function do_test() { [ -n "$1" ] && test_time=$1 || test_time=10 # 每个文件测试多少次，默认10次 cd $source_dir for file_to_test in * do #s_md5=$(echo $file_to_test|awk -F '[-.]' '{print $2}' | tr '[a-z]' '[A-Z]' ) # 拿出原文件md5 #echo "file_size_info=$(ls -lh $file_to_test | awk '{print $5}')" test_total=0 test_pass=0 test_fail=0 file_size_info=$(ls -lh $file_to_test | awk '{print $5}') file_size_number=${file_size_info:0:-1} file_size_unit=${file_size_info: -1} # 单位为G的，转换为M [ $file_size_unit = "G" ] && { file_size_unit='M'; file_size_number=$( echo "$file_size_number * 1024" | bc ) ; } for i in $(seq 1 $test_time) do start_time=$(date +%"s") if [ "$mode" = "cp" ]; then echo -n "当前第$i次测试: cp $file_to_test ....." cp $file_to_test $target_dir && sync sync echo 1 > /proc/sys/vm/drop_caches &>/dev/null end_time=$(date +%"s") fi if [ $mode = 'dd' ]; then echo -n "当前第$i次测试: dd $file_to_test ....." dd if=$file_to_test of=$target_dir/$file_to_test conv=fsync && sync sync echo 3 > /proc/sys/vm/drop_caches &>/dev/null end_time=$(date +%"s") fi duration=$((end_time - start_time)) [ $duration -eq 0 ] && duration=1 speed=$(echo "scale=2; $file_size_number / $duration" | bc ) echo -n "speed = $speed $file_size_unit/s" result=$(cmp $file_to_test $target_dir/$file_to_test) if [ $? -eq 0 ]; then msg_green " SUCCESSED! " test_pass=$((test_pass+1)) else msg_red "FAILED! -> $result " test_fail=$((test_fail+1)) fi test_total=$((test_total+1)) rm -f $target_dir/$file_to_test && sync sync echo 3 > /proc/sys/vm/drop_caches &>/dev/null done msg_blue "====== $file_to_test 一共测试$test_total次，成功$test_pass次，失败$test_fail次 ======" done } #for i in $(seq(1 $loop_time)) for t in $(seq 1 $loop_time) do echo ">>>>>>>>>>>>>>>>>> 当前第 $t 轮测试 <<<<<<<<<<<<<<<<<<<<<<<<<<<<" do_test 10 done
