Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
---|---|---|---|---|
2021-06-01 | OpenJDK9 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
UnlockExperimentalVMOptions | boolean | Enable normal processing of flags relating to experimental features |
false | true |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
UseZGC | boolean | Use the Z garbage collector | false | true |
Analysis | This switch is not available until OpenJDK11. Your analysis was for OpenJDK9 |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
ms | <size> | set initial Java heap size | 2048m | |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
mx | <size> | set maximum Java heap size | 2048m | |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
MaxMetaspaceSize | size_t | Maximum size of Metaspaces (in bytes) | max_uintx | 768m |
Analysis | OK |
Name | Type | Description | Default Value | Your Value | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MetaspaceSize | int | Initial threshold (in bytes) at which a garbage collection is done to reduce Metaspace usage |
|
768m | |||||||||
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
DisableExplicitGC | boolean | Ignore calls to System.gc() | false | true |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
UseBiasedLocking | boolean | Enable biased locking in JVM | true | false |
Analysis | This switch will be removed in the future. It will be Deprecated in OpenJDK15. Obsoleted in OpenJDK18. Expired in OpenJDK19. |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
ClassUnloadingWithConcurrentMark | boolean | Do unloading of classes with a concurrent marking cycle | true | true |
Analysis | OK |