jkiller

昨天发现JVM CPU使用过高，到网上找分析工具，找到了这个叫jkiller的东东，记录一下。

 

项目地址：https://github.com/54chen/jkiller

 

当前完整脚本如下：

 

#!/bin/sh

export LANG="zh_CN.UTF-8";
export LC_ALL="zh_CN.UTF-8";

LOG_FILE="/tmp/jkiller.log";
JSTACK_FILE="/tmp/jstack.log";

PID="$1";
shift;
i=0;
j="$1";
if [ -z "${j}" ]; then
    j=5;
fi

ps -mp ${PID} -o THREAD,tid,time | sort -rn > ${LOG_FILE};
jstack ${PID} > ${JSTACK_FILE};

for LINE in `cat ${LOG_FILE}|gawk -F '-' '{print $4}'|gawk -F ' ' '{print $1}'`
do
    i=$(($i+1));
    if (($i>$j)); then
        break;
    fi;
    XPID=`printf "%x\n" ${LINE}`;
    echo -ne "\033[32m";
    echo ${XPID};
    echo -e "\033[34m";
    grep -A 10 "0x${XPID}" ${JSTACK_FILE};
    echo -e "\e[0m";
done;