JaCoLine - Viewing Historical Command Line #2485

Analysis Date JDK Operating System CPU Architecture Debug JVM?
2021-01-14 OpenJDK11 Linux aarch64 N
Results
Switches Identified
Switch Analysis
Name Type Description Default Value Your Value
UnlockExperimentalVMOptions boolean Enable normal processing of flags relating to experimental
features
false true
Analysis OK
Name Type Description Default Value Your Value
UseCGroupMemoryLimitForHeap boolean Use CGroup memory limit as physical memory limit for heap
sizing
Deprecated, replaced by container support
false true
Analysis This switch was removed after OpenJDK10. Your analysis was for OpenJDK11
Name Type Description Default Value Your Value
InitialRAMFraction int Fraction (1/n) of real memory used for initial heap size.
Deprecated, use InitialRAMPercentage instead
64 in range(1, max_uintx) 4
Analysis This switch will be removed in the future. It will be Deprecated in OpenJDK10. Obsoleted in OpenJDK23. Expired in OpenJDK24.
Name Type Description Default Value Your Value
MaxRAMFraction int Maximum fraction (1/n) of real memory used for maximum heap
size.
Deprecated, use MaxRAMPercentage instead
4 in range(1, max_uintx) 2
Analysis This switch will be removed in the future. It will be Deprecated in OpenJDK10. Obsoleted in OpenJDK23. Expired in OpenJDK24.
Name Type Description Default Value Your Value
AlwaysActAsServerClassMachine boolean Always act like a server-class machine false true
Analysis OK
Name Type Description Default Value Your Value
UseParallelGC boolean Use the Parallel Scavenge garbage collector false true
Analysis OK
Name Type Description Default Value Your Value
MetaspaceSize int Initial threshold (in bytes) at which a garbage collection
is done to reduce Metaspace usage
12*M 384m
Analysis OK
Name Type Description Default Value Your Value
MaxMetaspaceSize size_t Maximum size of Metaspaces (in bytes) max_uintx 768m
Analysis OK
Name Type Description Default Value Your Value
MinMetaspaceFreeRatio int The minimum percentage of Metaspace free after GC to avoid
expansion
40 in range(0, 99) 10
Analysis OK
Name Type Description Default Value Your Value
MaxMetaspaceFreeRatio int The maximum percentage of Metaspace free after GC to avoid
shrinking
70 in range(0, 100) 100
Analysis OK
Name Type Description Default Value Your Value
ss <size> set java thread stack size 256k
Analysis OK
Name Type Description Default Value Your Value
CrashOnOutOfMemoryError boolean JVM aborts, producing an error log and core/mini dump, on the
first occurrence of an out-of-memory error
false true
Analysis OK
Name Type Description Default Value Your Value
UseCompressedOops boolean Use 32-bit object references in 64-bit VM.
lp64_product means flag is always constant in 32 bit VM
false true
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
UseNUMA boolean Use NUMA if available false true
Analysis OK