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VM Options Explorer - Switch comparison of OpenJDK21 vs Oracle JDK21
OpenJDK HotSpot
Options added/removed between JDKs
OpenJDK options also hosted on
foojay.io
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Alibaba Dragonwell
8
11
17
21
Amazon Corretto
8
11
17
19
20
21
22
Azul Systems
Platform Prime
Zulu
8
11
13
15
17
19
8
11
13
15
16
17
18
19
20
21
22
BellSoft Liberica
8
11
17
18
19
20
21
22
Eclipse Temurin
8
11
17
18
19
20
21
22
GraalVM 22.3.1
11
17
19
CE
EE
CE
EE
CE
EE
EE-only
EE-only
EE-only
GraalVM native-image 22.3.1
11
17
19
CE
EE
CE
EE
CE
EE
EE-only
EE-only
EE-only
JDK-based GraalVM
17
21
22
JDK
Native
JDK
Native
JDK
Native
Microsoft
11
16
17
21
OpenJ9
OpenJ9
Oracle
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SAP SapMachine
11
17
19
20
21
Oracle JDK21 changed default values for:
None
Oracle JDK21 added:
None
Oracle JDK21 removed:
DummyManageableStringFlag
G1EvacuationFailureALot
G1EvacuationFailureALotCSetPercent
G1EvacuationFailureALotCount
G1EvacuationFailureALotDuringConcMark
G1EvacuationFailureALotDuringConcurrentStart
G1EvacuationFailureALotDuringMixedGC
G1EvacuationFailureALotDuringYoungGC
G1EvacuationFailureALotInterval
InlineCacheBufferSize
MonitorUnlinkBatch
ShenandoahAdaptiveDecayFactor
ShenandoahAdaptiveInitialConfidence
ShenandoahAdaptiveInitialSpikeThreshold
ShenandoahAdaptiveSampleFrequencyHz
ShenandoahAdaptiveSampleSizeSeconds
ShenandoahAllocFailureALot
ShenandoahAllocSpikeFactor
ShenandoahAllocationThreshold
ShenandoahAlwaysClearSoftRefs
ShenandoahCASBarrier
ShenandoahCloneBarrier
ShenandoahControlIntervalAdjustPeriod
ShenandoahControlIntervalMax
ShenandoahControlIntervalMin
ShenandoahCriticalFreeThreshold
ShenandoahDegeneratedGC
ShenandoahEvacReserve
ShenandoahEvacReserveOverflow
ShenandoahEvacWaste
ShenandoahFullGCThreshold
ShenandoahGCHeuristics
ShenandoahGCMode
ShenandoahGarbageThreshold
ShenandoahGuaranteedGCInterval
ShenandoahHumongousMoves
ShenandoahHumongousThreshold
ShenandoahIUBarrier
ShenandoahImmediateThreshold
ShenandoahImplicitGCInvokesConcurrent
ShenandoahInitFreeThreshold
ShenandoahLearningSteps
ShenandoahLoadRefBarrier
ShenandoahMarkLoopStride
ShenandoahMarkScanPrefetch
ShenandoahMaxRegionSize
ShenandoahMaxSATBBufferFlushes
ShenandoahMinFreeThreshold
ShenandoahMinRegionSize
ShenandoahOOMDuringEvacALot
ShenandoahPacing
ShenandoahPacingCycleSlack
ShenandoahPacingIdleSlack
ShenandoahPacingMaxDelay
ShenandoahPacingSurcharge
ShenandoahParallelRegionStride
ShenandoahRegionSampling
ShenandoahRegionSamplingRate
ShenandoahRegionSize
ShenandoahSATBBarrier
ShenandoahSATBBufferSize
ShenandoahStackWatermarkBarrier
ShenandoahTargetNumRegions
ShenandoahUncommit
ShenandoahUncommitDelay
ShenandoahVerify
ShenandoahVerifyLevel
StressIncrementalInlining
TestFlagFor_bool
TestFlagFor_double
TestFlagFor_int
TestFlagFor_intx
TestFlagFor_size_t
TestFlagFor_uint
TestFlagFor_uint64_t
TestFlagFor_uintx
UseMadvPopulateWrite
