JaCoLine - Viewing Historical Command Line #11666
| Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
|---|---|---|---|---|
| 2024-09-12 | OpenJDK21 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ms | <size> | set initial Java heap size | 2g | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| mx | <size> | set maximum Java heap size | 24g | |
| Analysis | OK | |||
| 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 |
|---|---|---|---|---|
| PrintGCDetails | boolean | Print more details at garbage collection. Deprecated, use -Xlog:gc* instead. |
false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintGCDateStamps | boolean | Print date stamps at garbage collection | false | true |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintGCApplicationConcurrentTime | boolean | Print the time the application has been running | false | true |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| PrintHeapAtGC | boolean | Print heap layout before and after each GC | false | true |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseGCLogFileRotation | boolean | Rotate gclog files (for long running applications). It requires -Xloggc:<filename> |
false | true |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| HeapDumpOnOutOfMemoryError | boolean | Dump heap to file when java.lang.OutOfMemoryError is thrown from JVM |
false | true |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| NumberOfGCLogFiles | int | Number of gclog files in rotation (default: 0, no rotation) |
0 | 5 |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| GCLogFileSize | int | GC log file size, requires UseGCLogFileRotation. Set to 0 to only trigger rotation via jcmd |
8*K | 5M |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| CMSInitiatingOccupancyFraction | int | Percentage CMS generation occupancy to start a CMS collection cycle. A negative value means that CMSTriggerRatio is used |
-1 in range(min_intx, 100) | 75 |
| Analysis | This switch was removed after OpenJDK13. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| UseCMSInitiatingOccupancyOnly | boolean | Only use occupancy as a criterion for starting a CMS collection | false | true |
| Analysis | This switch was removed after OpenJDK13. Your analysis was for OpenJDK21 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| HeapDumpPath | string | When HeapDumpOnOutOfMemoryError is on, the path (filename or directory) of the dump file (defaults to java_pid<pid>.hprof in the working directory) |
nullptr | /app/esc/data/logs/smart-terminal/heapdump.hprof |
| Analysis | Duplicate switch. This is overridden by -XX:HeapDumpPath=/app/esc/data/logs/smart-terminal/HeapDumpOnOutOfMemoryError/. | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| loggc | <file> | log GC status to a file with time stamps. This option is deprecated and may be removed in a future release. It is replaced by -Xlog:gc:<file>. |
::/app/esc/data/logs/smart-terminal/gc.log | |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| HeapDumpPath | string | When HeapDumpOnOutOfMemoryError is on, the path (filename or directory) of the dump file (defaults to java_pid<pid>.hprof in the working directory) |
nullptr | /app/esc/data/logs/smart-terminal/HeapDumpOnOutOfMemoryError/ |
| Analysis | OK | |||