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jdk/test/micro/org/openjdk/bench/java/lang
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Alan Bateman ac6e8d481a 8376568: Change Thread::getStackTrace to use handshake op for all cases 
Reviewed-by: pchilanomate, sspitsyn
2026-02-05 13:46:23 +00:00
..
classfile
8334733: Remove obsolete @enablePreview from tests after JDK-8334714
2024-12-06 14:25:03 +00:00
constant
8338532: Speed up the ClassFile API MethodTypeDesc#ofDescriptor
2024-08-21 14:56:30 +00:00
foreign
8369564: Provide a MemorySegment API to read strings with known lengths
2026-01-12 15:22:42 +00:00
invoke
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
ref
8343704: Bad GC parallelism with processing Cleaner queues
2024-12-04 11:36:23 +00:00
reflect
8353835: Implement JEP 500: Prepare to Make Final Mean Final
2025-11-18 08:06:18 +00:00
runtime
8366424: Missing type profiling in generated Record Object methods
2025-10-21 19:00:51 +00:00
stable
8366178: Implement JEP 526: Lazy Constants (Second Preview)
2025-11-18 12:20:23 +00:00
ArrayClone.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
ArrayCopy.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ArrayCopyAligned.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ArrayCopyAlignedLarge.java
8310159: Bulk copy with Unsafe::arrayCopy is slower compared to memcpy
2023-11-27 17:35:39 +00:00
ArrayCopyObject.java
8311178: JMH tests don't scale well when sharing output buffers
2023-07-11 16:14:33 +00:00
ArrayCopyUnalignedBoth.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ArrayCopyUnalignedDst.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ArrayCopyUnalignedSrc.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ArrayFiddle.java
8311178: JMH tests don't scale well when sharing output buffers
2023-07-11 16:14:33 +00:00
CallerClassBench.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
CbrtPerf.java
8353686: Optimize Math.cbrt for x86 64 bit platforms
2025-05-30 21:47:20 +00:00
Characters.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
ClassComparison.java
8357551: RISC-V: support CMoveF/D vectorization
2025-12-08 13:38:22 +00:00
ClassForName.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ClassGetResource.java
8260337: Optimize ImageReader lookup, used by Class.getResource
2021-02-09 15:32:36 +00:00
ClassLoaderDefineClass.java
8365588: defineClass that accepts a ByteBuffer does not work as expected
2025-10-13 20:29:06 +00:00
Clone.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
DoubleBitConversion.java
8345219: C2: x86_64 should not go to interpreter stubs for NaNs handling
2024-12-04 16:37:38 +00:00
DoubleClassCheck.java
8294198: Implement isFinite intrinsic for RISC-V
2022-09-29 18:51:38 +00:00
Doubles.java
8370013: Refactor Double.toHexString to eliminate regex and StringBuilder
2025-10-24 00:40:13 +00:00
EnumHashCode.java
8306075: Micro-optimize Enum.hashCode
2023-04-21 09:51:36 +00:00
FloatBitConversion.java
8345219: C2: x86_64 should not go to interpreter stubs for NaNs handling
2024-12-04 16:37:38 +00:00
FloatClassCheck.java
8294198: Implement isFinite intrinsic for RISC-V
2022-09-29 18:51:38 +00:00
FloatingPointParse.java
8366017: Extend the set of inputs handled by fast paths in FloatingDecimal
2025-11-03 09:48:55 +00:00
FPComparison.java
8374383: Update the copyright year to 2025 in the remaining files under test/ where it was missed
2025-12-31 10:04:45 +00:00
GetStackTrace.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
IntegerComparison.java
8357551: RISC-V: support CMoveF/D vectorization
2025-12-08 13:38:22 +00:00
IntegerDivMod.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
Integers.java
8290034: Auto vectorize reverse bit operations.
2022-07-28 04:43:01 +00:00
LongComparison.java
8357551: RISC-V: support CMoveF/D vectorization
2025-12-08 13:38:22 +00:00
LongDivMod.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
Longs.java
8290034: Auto vectorize reverse bit operations.
2022-07-28 04:43:01 +00:00
MathBench.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
MinMaxVector.java
8372119: Missing copyright header in MinMaxVector
2025-11-24 09:24:19 +00:00
NewInstance.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ObjectHashCode.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
PointerComparison.java
8357551: RISC-V: support CMoveF/D vectorization
2025-12-08 13:38:22 +00:00
PopCountValueTransform.java
8365205: C2: Optimize popcount value computation using knownbits
2025-10-14 03:35:11 +00:00
RegionMatchesIC.java
8302871: Speed up StringLatin1.regionMatchesCI
2023-02-25 07:48:03 +00:00
RotateBenchmark.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ScopedValues.java
8361497: Scoped Values: orElse and orElseThrow do not access the cache
2025-07-21 17:05:50 +00:00
ScopedValuesData.java
8360884: Better scoped values
2025-07-07 09:16:39 +00:00
ScopedValuesExecutorService.java
8306647: Implementation of Structured Concurrency (Preview)
2023-06-07 06:41:09 +00:00
Shorts.java
8334397: RISC-V: verify perf of ReverseBytesS/US
2024-06-25 14:06:03 +00:00
SinhPerf.java
8360559: Optimize Math.sinh for x86 64 bit platforms
2025-08-04 18:47:57 +00:00
StackTraceElementBench.java
8291641: Optimize StackTraceElement.toString()
2022-08-10 16:22:19 +00:00
StackWalkBench.java
8285447: StackWalker minimal batch size should be optimized for getCallerClass
2023-09-12 16:24:16 +00:00
StrictMathBench.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
StrictMathExtraBench.java
8370150: Add StrictMath microbenchmarks to cover FDLIBM algorithms
2025-10-31 14:00:55 +00:00
StringBuffers.java
8326370: Remove redundant and misplaced micros from StringBuffers
2024-02-21 11:19:37 +00:00
StringBuilders.java
8355177: Speed up StringBuilder::append(char[]) via Unsafe::copyMemory
2025-07-30 13:16:27 +00:00
StringBuilderToString.java
8282429: StringBuilder/StringBuffer.toString() skip compressing for UTF16 strings
2022-04-01 04:42:03 +00:00
StringCompareToDifferentLength.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringCompareToFoldCase.java
8365675: Add String Unicode Case-Folding Support
2025-12-02 19:47:18 +00:00
StringCompareToIgnoreCase.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringComparisons.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringConcat.java
8336856: Efficient hidden class-based string concatenation strategy
2024-08-16 13:18:02 +00:00
StringConcatStartup.java
8336856: Efficient hidden class-based string concatenation strategy
2024-08-16 13:18:02 +00:00
StringConstructor.java
8311906: Improve robustness of String constructors with mutable array inputs
2023-12-04 18:28:59 +00:00
StringDecode.java
8281146: Replace StringCoding.hasNegatives with countPositives
2022-03-17 09:20:24 +00:00
StringEncode.java
8282047: Enhance StringDecode/Encode microbenchmarks
2022-03-01 10:20:22 +00:00
StringEquals.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringFormat.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
StringHashCode.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
StringHashCodeStatic.java
8354300: Mark String.hash field @Stable
2025-04-22 15:10:26 +00:00
StringIndexOf.java
8345799: Update copyright year to 2024 for core-libs in files where it was missed
2024-12-11 21:08:22 +00:00
StringIndexOfChar.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
StringIndexOfHuge.java
8320448: Accelerate IndexOf using AVX2
2024-06-07 17:02:14 +00:00
StringOffsetByCodePoints.java
8297561: Redundant index check in String.offsetByCodePoints()
2022-12-01 15:28:39 +00:00
StringOther.java
8302163: Speed up various String comparison methods with ArraysSupport.mismatch
2023-02-15 21:52:41 +00:00
StringReplace.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringSubstring.java
8314085: Fixing scope from benchmark to thread for JMH tests having shared state
2023-10-03 16:01:36 +00:00
StringUpperLower.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
SystemTime.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
TanhPerf.java
8348638: Performance regression in Math.tanh
2025-05-02 17:21:50 +00:00
ThreadGetStackTraceWhenParked.java
8376568: Change Thread::getStackTrace to use handshake op for all cases
2026-02-05 13:46:23 +00:00
ThreadGetStackTraceWhenSpinning.java
8376568: Change Thread::getStackTrace to use handshake op for all cases
2026-02-05 13:46:23 +00:00
ThreadOnSpinWait.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ThreadOnSpinWaitProducerConsumer.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
ThreadOnSpinWaitSharedCounter.java
8350909: [JMH] test ThreadOnSpinWaitShared failed for 2 threads config
2025-03-07 20:38:25 +00:00
ThreadSleep.java
8305092: Improve Thread.sleep(millis, nanos) for sub-millisecond granularity
2023-05-03 09:39:57 +00:00
ThreadStartJoin.java
8287810: Reduce runtime of java.lang microbenchmarks
2022-06-07 07:23:30 +00:00
VirtualThreadGetStackTraceWhenSpinning.java
8376568: Change Thread::getStackTrace to use handshake op for all cases
2026-02-05 13:46:23 +00:00
VirtualThreadGetStackTraceWhenUnmounted.java
8376568: Change Thread::getStackTrace to use handshake op for all cases
2026-02-05 13:46:23 +00:00
VirtualThreadGetStackTraceWhenYielding.java
8376568: Change Thread::getStackTrace to use handshake op for all cases
2026-02-05 13:46:23 +00:00
VirtualThreadParking.java
8351927: Change VirtualThread implementation to use use FJP delayed task handling
2025-04-09 12:36:35 +00:00
VirtualThreadSleep.java
8351927: Change VirtualThread implementation to use use FJP delayed task handling
2025-04-09 12:36:35 +00:00