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1.7 KiB
1.7 KiB
Check the current JVM Perf Counter information.
perfcounter -h{{execute T2}}
USAGE:
perfcounter [-d] [-h]
SUMMARY:
Display the perf counter infornation.
Examples:
perfcounter
perfcounter -d
WIKI:
https://alibaba.github.io/arthas/perfcounter
OPTIONS:
-d, --details print all perf counter details
-h, --help this help
Usage
perfcounter{{execute T2}}
$ perfcounter
java.ci.totalTime 2325637411
java.cls.loadedClasses 3403
java.cls.sharedLoadedClasses 0
java.cls.sharedUnloadedClasses 0
java.cls.unloadedClasses 0
java.property.java.version 11.0.4
java.property.java.vm.info mixed mode
java.property.java.vm.name OpenJDK 64-Bit Server VM
Print more information with the -d option:
perfcounter -d{{execute T2}}
$ perfcounter -d
Name Variability Units Value
---------------------------------------------------------------------------------
java.ci.totalTime Monotonic Ticks 3242526906
java.cls.loadedClasses Monotonic Events 3404
java.cls.sharedLoadedClasses Monotonic Events 0
java.cls.sharedUnloadedClasses Monotonic Events 0
java.cls.unloadedClasses Monotonic Events 0
PS: for JVM above JDK9
If the information is not printed, when the application starts, add the following parameters:
--add-opens java.base/jdk.internal.perf=ALL-UNNAMED --add-exports java.base/jdk.internal.perf=ALL-UNNAMED