Analysis Date | JDK | Operating System | CPU Architecture | Debug JVM? |
---|---|---|---|---|
2020-11-30 | OpenJDK8 | Linux | x86 | N |
Results
Switches Identified
Switch Analysis
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
ms | <size> | set initial Java heap size | 3g | |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
mx | <size> | set maximum Java heap size | 32766m | |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
InitiatingHeapOccupancyPercent | int | Percentage of the (entire) heap occupancy to start a concurrent GC cycle. It is used by GCs that trigger a concurrent GC cycle based on the occupancy of the entire heap, not just one of the generations (e.g., G1). A value of 0 denotes 'do constant GC cycles'. |
45 | 70 |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
UseStringDeduplication | boolean | Use string deduplication | false | true |
Analysis | OK |
Name | Type | Description | Default Value | Your Value | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ReservedCodeCacheSize | int | Reserved code cache size (in bytes) - maximum code cache size |
|
1024m | |||||||||
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 | 1000 |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
OmitStackTraceInFastThrow | boolean | Omit backtraces for some 'hot' exceptions in optimized code | true | false |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
loggc | <file> | log GC status to a file with time stamps | ::/data/jira-inst-6.3.1/logs/atlassian-jira-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 | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
NumberOfGCLogFiles | int | Number of gclog files in rotation (default: 0, no rotation) |
0 | 5 |
Analysis | OK |
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 | 20M |
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 |
---|---|---|---|---|
PrintGCTimeStamps | boolean | Print timestamps at garbage collection | false | true |
Analysis | OK |
Name | Type | Description | Default Value | Your Value |
---|---|---|---|---|
PrintGCCause | boolean | Include GC cause in GC logging | true | true |
Analysis | OK |