The below benchmark files have scaling issues due to cache contention and leads to poor scaling when run on multiple threads. The patch sets the scope from benchmark level to thread level to fix the issue: - org/openjdk/bench/java/io/DataOutputStreamTest.java - org/openjdk/bench/java/lang/ArrayCopyObject.java - org/openjdk/bench/java/lang/ArrayFiddle.java - org/openjdk/bench/java/time/format/DateTimeFormatterBench.java - org/openjdk/bench/jdk/incubator/vector/IndexInRangeBenchmark.java - org/openjdk/bench/jdk/incubator/vector/MemorySegmentVectorAccess.java - org/openjdk/bench/jdk/incubator/vector/StoreMaskedBenchmark.java - org/openjdk/bench/jdk/incubator/vector/StoreMaskedIOOBEBenchmark.java - org/openjdk/bench/vm/compiler/ArrayFill.java - org/openjdk/bench/vm/compiler/IndexVector.java
Also removing the static scope for variables in org/openjdk/bench/jdk/incubator/vector/VectorFPtoIntCastOperations.java for better scaling. Please review and share your feedback. Thanks, Swati ------------- Commit messages: - 8311178: JMH tests don't scale well when sharing output buffers Changes: https://git.openjdk.org/jdk/pull/14746/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14746&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8311178 Stats: 17 lines in 12 files changed: 0 ins; 0 del; 17 mod Patch: https://git.openjdk.org/jdk/pull/14746.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14746/head:pull/14746 PR: https://git.openjdk.org/jdk/pull/14746
