On Tue, 13 Aug 2024 16:34:18 GMT, Shaojin Wen <d...@openjdk.org> wrote:
>> This PR implements the same algorithm as the current generateMHInlineCopy >> based on bytecode to improve startup performance. > > Shaojin Wen has updated the pull request incrementally with two additional > commits since the last revision: > > - static final > - code style In the `StringConcat.concat123String` scenario, setting the inlineThreshold to 150 still shows a performance improvement, although this is crazy. But this can be used as a performance optimization parameter. Here are the performance numbers for the current version running on a MacBook M1 Pro make test TEST="micro:java.lang.StringConcat.concat123String" Benchmark (intValue) Mode Cnt Score Error Units StringConcat.concat123String 4711 avgt 15 1089.723 ? 9.913 ns/op make test TEST="micro:java.lang.StringConcat.concat123String" MICRO="VM_OPTIONS=-Djava.lang.invoke.StringConcat.inlineThreshold=150" Benchmark (intValue) Mode Cnt Score Error Units StringConcat.concat123String 4711 avgt 15 719.557 ? 10.208 ns/op ------------- PR Comment: https://git.openjdk.org/jdk/pull/20273#issuecomment-2288314682
