快速找到Tomcat中最耗CPU的线程
1、找出TOMCAT的JVM的进程ID
1 2 3 4 | [work@112542000 ~]$ jps 290 Bootstrap <span style="color: #ff6600;">61213 Jps </span> |
2、查看该进程中，最耗费CPU的线程
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | [work@112542000 ~]$ ps -mp 290 -o THREAD,tid,time | sort -k2 -r | head -n 20 USER %CPU PRI SCNT WCHAN USER SYSTEM TID TIME work 15.3 - - - - - - 03:11:58 <span style="color: #ff6600;">work 1.2 19 - - - - 326 00:15:45 </span>work 0.2 19 - - - - 872 00:03:44 work 0.1 19 - - - - 992 00:01:44 work 0.1 19 - - - - 972 00:01:16 work 0.1 19 - - - - 870 00:01:19 work 0.1 19 - - - - 869 00:01:34 work 0.0 19 - - - - 9993 00:00:00 work 0.0 19 - - - - 997 00:00:06 work 0.0 19 - - - - 9969 00:00:00 work 0.0 19 - - - - 9968 00:00:00 work 0.0 19 - - - - 996 00:00:34 work 0.0 19 - - - - 9960 00:00:00 work 0.0 19 - - - - 995 00:00:00 work 0.0 19 - - - - 9944 00:00:00 work 0.0 19 - - - - 994 00:00:31 work 0.0 19 - - - - 9936 00:00:00 work 0.0 19 - - - - 9934 00:00:26 work 0.0 19 - - - - 9933 00:00:21 |
3、以TID==326为例，查看该线程的堆栈 首先，将十进制的326转换成十六进制，可以在线转换： http://tool.oschina.net/hexconvert 结果等于146 使用 … 继续阅读快速找到Tomcat中最耗CPU的线程