mirror of
https://github.com/dunwu/linux-tutorial.git
synced 2024-04-15 19:55:24 +08:00
55 lines
1.2 KiB
Bash
55 lines
1.2 KiB
Bash
#!/usr/bin/env bash
|
||
|
||
# auth:kaliarch
|
||
# func:sys info check
|
||
# version:v1.0
|
||
# sys:centos6.x/7.x
|
||
|
||
set -e
|
||
[ $(id -u) -gt 0 ] && exit 1
|
||
|
||
# cpu使用超过百分之多少进行限制
|
||
PEC_CPU=80
|
||
|
||
# 限制进程使用百分之多少,如果程序为多线程，单个cpu限制为85，如果为多核心，就需要按照比例写，例如cpu为2c，像限制多线程占比80%，就写170
|
||
LIMIT_CPU=85
|
||
# 日志
|
||
LOG_DIR=/var/log/cpulimit/
|
||
|
||
# 超过阀值进程pid
|
||
PIDARG=$(ps -aux | awk -v CPU=${PEC_CPU} '{if($3 > CPU) print $2}')
|
||
CPULIMITCMD=$(which cpulimit)
|
||
|
||
install_cpulimit() {
|
||
[ ! -d /tmp ] && mkdir /tmp || cd /tmp
|
||
wget -c https://github.com/opsengine/cpulimit/archive/v0.2.tar.gz
|
||
tar -zxf v0.2.tar.gz
|
||
cd cpulimit-0.2 && make
|
||
[ $? -eq 0 ] && cp src/cpulimit /usr/bin/
|
||
}
|
||
|
||
|
||
do_cpulimit() {
|
||
[ ! -d ${LOG_DIR} ] && mkdir -p ${LOG_DIR}
|
||
for i in ${PIDARG};
|
||
do
|
||
MSG=$(ps -aux | awk -v pid=$i '{if($2 == pid) print $0}')
|
||
echo ${MSG}
|
||
[ ! -d /tmp ] && mkdir /tmp || cd /tmp
|
||
nohup ${CPULIMITCMD} -p $i -l ${LIMIT_CPU} &
|
||
echo "$(date) -- ${MSG}" >> ${LOG_DIR}$(date +%F).log
|
||
done
|
||
}
|
||
|
||
main() {
|
||
|
||
hash cpulimit
|
||
if [ $? -eq 0 ]; then
|
||
do_cpulimit
|
||
else
|
||
install_cpulimit && do_cpulimit
|
||
fi
|
||
}
|
||
|
||
main
|