mirror of
https://github.com/dunwu/linux-tutorial.git
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54 lines
1.2 KiB
Bash
54 lines
1.2 KiB
Bash
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#!/bin/bash
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# auth:kaliarch
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# func:sys info check
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# version:v1.0
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# sys:centos6.x/7.x
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set -e
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[ $(id -u) -gt 0 ] && exit 1
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# cpu使用超过百分之多少进行限制
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PEC_CPU=80
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# 限制进程使用百分之多少,如果程序为多线程，单个cpu限制为85，如果为多核心，就需要按照比例写，例如cpu为2c，像限制多线程占比80%，就写170
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LIMIT_CPU=85
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# 日志
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LOG_DIR=/var/log/cpulimit/
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# 超过阀值进程pid
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PIDARG=$(ps -aux |awk -v CPU=${PEC_CPU} '{if($3 > CPU) print $2}')
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CPULIMITCMD=$(which cpulimit)
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install_cpulimit() {
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[ ! -d /tmp ] && mkdir /tmp || cd /tmp
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wget -c https://github.com/opsengine/cpulimit/archive/v0.2.tar.gz
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tar -zxf v0.2.tar.gz
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cd cpulimit-0.2 && make
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[ $? -eq 0 ] && cp src/cpulimit /usr/bin/
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}
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do_cpulimit() {
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[ ! -d ${LOG_DIR} ] && mkdir -p ${LOG_DIR}
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for i in ${PIDARG};
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do
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MSG=$(ps -aux |awk -v pid=$i '{if($2 == pid) print $0}')
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echo ${MSG}
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[ ! -d /tmp ] && mkdir /tmp || cd /tmp
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nohup ${CPULIMITCMD} -p $i -l ${LIMIT_CPU} &
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echo "$(date) -- ${MSG}" >> ${LOG_DIR}$(date +%F).log
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done
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}
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main() {
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hash cpulimit
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if [ $? -eq 0 ];then
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do_cpulimit
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else
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install_cpulimit && do_cpulimit
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fi
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}
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main
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