JaCoLine - Viewing Historical Command Line #3444
| Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
|---|---|---|---|---|
| 2021-11-24 | OpenJDK17 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| ms | <size> | set initial Java heap size | 24g | |
| 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 |
|---|---|---|---|---|
| MaxMetaspaceSize | size_t | Maximum size of Metaspaces (in bytes) | max_uintx | 512m |
| 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 |
|---|---|---|---|---|
| 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 - 1 in range(1, max_uintx - 1) | 500 |
| Analysis | OK | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| InitiatingHeapOccupancyPercent | int | The percent occupancy (IHOP) of the current old generation capacity above which a concurrent mark cycle will be initiated Its value may change over time if adaptive IHOP is enabled, otherwise the value remains constant. In the latter case a value of 0 will result as frequent as possible concurrent marking cycles. A value of 100 disables concurrent marking. Fragmentation waste in the old generation is not considered free space in this calculation. (G1 collector only) |
45 in range(0, 100) | 40 |
| 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 |
|---|---|---|---|---|
| PrintGCTimeStamps | boolean | Print timestamps at garbage collection | false | true |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK17 | |||
| 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 OpenJDK17 | |||
| 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 OpenJDK17 | |||
| 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>. |
::/logs/iflyres/sunExpress/Prod/TourOperator/TO2/tomcat/tour_op_gc_%t.log | |
| Analysis | OK | |||
| 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 OpenJDK17 | |||
| Name | Type | Description | Default Value | Your Value |
|---|---|---|---|---|
| NumberOfGCLogFiles | int | Number of gclog files in rotation (default: 0, no rotation) |
0 | 10 |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK17 | |||
| 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 | 100M |
| Analysis | This switch was removed after OpenJDK8. Your analysis was for OpenJDK17 | |||