问题 ：
在系统运行过程中发现TongWeb进程占用CPU过高，需要分析是应用哪里引起的问题。
分析过程(仅限Linux环境)：
1. 通过top命令查看TongWeb的java进程占用的CPU情况。 查看误区：不要以为java进程CPU占到398%就是高，若服务器为8核，则CPU占用满显示为800%。
[root@localhost bin]# top
top - 10:45:58 up 1:19, 1 user, load average: 3.65, 1.56, 0.68
Tasks: 171 total, 2 running, 169 sleeping, 0 stopped, 0 zombie
%Cpu(s): 38.7 us, 1.0 sy, 0.0 ni, 60.0 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st
KiB Mem : 1863220 total, 73452 free, 1352208 used, 437560 buff/cache
KiB Swap: 2097148 total, 2095604 free, 1544 used. 214164 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
13382 root 20 0 4235564 834012 17716 S 398.0 44.8 2:52.53 java
14871 root 39 19 108036 1032 744 R 1.3 0.1 0:00.92 updatedb
7153 root 20 0 483536 34056 7660 S 0.3 1.8 0:12.50 containerd
14491 root 20 0 162036 2356 1604 R 0.3 0.1 0:00.11 top
1 root 20 0 133892 3892 2344 S 0.0 0.2 0:01.70 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.15 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
7 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/02. 进入TongWeb8控制台查看忙碌线程，查看占用CPU高的线程栈所执行的操作。
3. 若服务器CPU很忙，已经无法打开TongWeb控制台，则可以用./admin.sh busy-thread [pid] 命令查看。
[root@localhost bin]# ./admin.sh busy-thread 13382
Execute the command: busy-thread
[1] Busy(48.3%) thread(14214/0x3786) stack of java process(13382):
"TW-0.0.0.0-8088-16" #200 daemon prio=5 os_prio=0 tid=0x00007ff508459800 nid=0x3786 runnable [0x00007ff5148e6000]
java.lang.Thread.State: RUNNABLE
at com.tong.TestServlet.doGet(TestServlet.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:503)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
at com.tongweb.server.core.ApplicationFilterChain.enterApp(ApplicationFilterChain.java:366)
at com.tongweb.server.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:236)
at com.tongweb.server.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.tongweb.web.websocket.server.WsFilter.doFilter(WsFilter.java:32)
at com.tongweb.server.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:197)
at com.tongweb.server.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.tongweb.server.core.StandardWrapperValve.invoke(StandardWrapperValve.java:146)
at com.tongweb.server.core.StandardContextValve.invoke(StandardContextValve.java:78)
at com.tongweb.ee.server.OpenEJBValve.invoke(OpenEJBValve.java:29)
