JaCoLine - Viewing Historical Command Line #2486
| Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
|---|---|---|---|---|
| 2021-01-16 | OpenJDK8 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseG1GC | boolean | Use the Garbage-First garbage collector | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| MaxGCPauseMillis | int | Adaptive size policy maximum GC pause time goal in millisecond, or (G1 Only) the maximum GC time per MMU time slice |
max_uintx | 200 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ms | <size> | set initial Java heap size | 512m | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| mx | <size> | set maximum Java heap size | 512m | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UnlockDiagnosticVMOptions | boolean | Enable normal processing of flags relating to field diagnostics | trueInDebug | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| DebugNonSafepoints | boolean | Generate extra debugging information for non-safepoints in nmethods |
trueInDebug | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UnlockCommercialFeatures | true | |||
| Analysis | Switch not found in any JDK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| FlightRecorder | boolean | Enable Flight Recorder | false | true |
| Analysis | This switch is not available until OpenJDK11. Your analysis was for OpenJDK8 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| FlightRecorderOptions | string | Flight Recorder options | NULL | stackdepth=1024 |
| Analysis | This switch is not available until OpenJDK11. Your analysis was for OpenJDK8 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintGCApplicationStoppedTime | boolean | Print the time the application has been stopped | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintSafepointStatistics | boolean | Print statistics about safepoint synchronization | false | true |
| Analysis | This switch will be removed in the future. It will be Deprecated in OpenJDK11. Obsoleted in OpenJDK12. Expired in OpenJDK13. | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintSafepointStatisticsCount | int | Total number of safepoint statistics collected before printing them out |
300 | 1 |
| Analysis | This switch will be removed in the future. It will be Deprecated in OpenJDK11. Obsoleted in OpenJDK12. Expired in OpenJDK13. | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| DisplayVMOutput | boolean | Display all VM output on the tty, independently of LogVMOutput | true | false |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| LogVMOutput | boolean | Save VM output to LogFile | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| LogFile | string | If LogVMOutput or LogCompilation is on, save VM output to this file [default: ./hotspot_pid%p.log] (%p replaced with pid) |
NULL | /tmp/vm1.log |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintGCDetails | boolean | Print more details at garbage collection | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintGCDateStamps | boolean | Print date stamps at garbage collection | false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| loggc | <file> | log GC status to a file with time stamps | ::/tmp/gc1.log | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| TraceBiasedLocking | boolean | Trace biased locking in JVM | false | true |
| Analysis | This switch will be removed in the future. It will be Obsoleted in OpenJDK16. Expired in OpenJDK17. | |||