JaCoLine - Viewing Historical Command Line #12671

Analysis Date	JDK	Operating System	CPU Architecture	Debug JVM?
2025-05-28	OpenJDK11	Linux	x86	N

Results

Switches Identified

-XX:MaxGCPauseMillis=200

-XX:+UseStringDeduplication

-XX:StringDeduplicationAgeThreshold=5

-XX:+HeapDumpOnOutOfMemoryError

-XX:+PrintGCDetails

-Xloggc:::log/scheduler_gc.%t.log

-XX:+PrintStringDeduplicationStatistics

-Xmx${MAX_HEAP}

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 - 1 in range(1, max_uintx - 1)	200
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
StringDeduplicationAgeThreshold	int	A string must reach this age (or be promoted to an old region) to be considered for deduplication	3 in range(1, markOopDesc::max_age)	5
Analysis	OK

Name	Type	Description	Default Value	Your Value
HeapDumpOnOutOfMemoryError	boolean	Dump heap to file when java.lang.OutOfMemoryError is thrown	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
loggc				::log/scheduler_gc.%t.log
Analysis	OK

Name	Type	Description	Default Value	Your Value
PrintStringDeduplicationStatistics	boolean	Print string deduplication statistics	false	true
Analysis	This switch was removed after OpenJDK8. Your analysis was for OpenJDK11

Name	Type	Description	Default Value	Your Value
ms	<size>	set initial Java heap size		3096m
Analysis	OK

Name	Type	Description	Default Value	Your Value
mx	<size>	set maximum Java heap size		${MAX_HEAP}
Analysis	OK