java 性能监控

参考：https://github.com/oldratlee/useful-shells/blob/master/show-busy-java-threads.sh

 

写道

$ show-busy-java-threads.sh
The stack of busy(57.0%) thread(23355/0x5b3b) of java process(23269) of user(admin):
"pool-1-thread-1" prio=10 tid=0x000000005b5c5000 nid=0x5b3b runnable [0x000000004062c000]
java.lang.Thread.State: RUNNABLE
at java.text.DateFormat.format(DateFormat.java:316)
at com.xxx.foo.services.common.DateFormatUtil.format(DateFormatUtil.java:41)
at com.xxx.foo.shared.monitor.schedule.AppMonitorDataAvgScheduler.run(AppMonitorDataAvgScheduler.java:127)
at com.xxx.foo.services.common.utils.AliTimer$2.run(AliTimer.java:128)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

The stack of busy(26.1%) thread(24018/0x5dd2) of java process(23269) of user(admin):
"pool-1-thread-2" prio=10 tid=0x000000005a968800 nid=0x5dd2 runnable [0x00000000420e9000]
java.lang.Thread.State: RUNNABLE
at java.util.Arrays.copyOf(Arrays.java:2882)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:572)
at java.lang.StringBuffer.append(StringBuffer.java:320)
- locked <0x00000007908d0030> (a java.lang.StringBuffer)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:890)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:869)
at java.text.DateFormat.format(DateFormat.java:316)
at com.xxx.foo.services.common.DateFormatUtil.format(DateFormatUtil.java:41)
at com.xxx.foo.shared.monitor.schedule.AppMonitorDataAvgScheduler.run(AppMonitorDataAvgScheduler.java:126)
at com.xxx.foo.services.common.utils.AliTimer$2.run(AliTimer.java:128)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
...