On Wed, 26 Apr 2023 15:04:50 GMT, Adam Sotona <asot...@openjdk.org> wrote:
> Following improvements implemented: > - Switch over `String` replaced with switch single char > - Binary search for frames in `StackMapGenerator` > - `StackMapGenerator.rawHandlers` with pre-calculated offsets > - `ClassEntry` is caching `ClassDesc` symbol > - Caching of type symbols in `NameAndTypeEntry` and `MethodTypeEntry` > - Caching `MethodTypeDesc` in `MethodInfo` implementations > - `StackMapGenerator` and `Utils` delegating to cached `MethodTypeDesc` > instead of custom parsing > > No API change. > > Benchmarks show stack map generation improved by 21% and code generation from > symbols improved by 30%. > > > Benchmark Mode Cnt Score Error Units > GenerateStackMaps.benchmark thrpt 10 407931.202 ± 13101.023 ops/s > RebuildMethodBodies.shared thrpt 4 10258.597 ± 383.699 ops/s > RebuildMethodBodies.unshared thrpt 4 7224.543 ± 256.800 ops/s > > > > Benchmark Mode Cnt Score Error Units > GenerateStackMaps.benchmark thrpt 10 495101.110 ± 2389.628 ops/s > RebuildMethodBodies.shared thrpt 4 13380.272 ± 810.113 ops/s > RebuildMethodBodies.unshared thrpt 4 9399.863 ± 557.060 ops/s This pull request has now been integrated. Changeset: f4f5542f Author: Adam Sotona <asot...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/f4f5542f8d49dbb756f52a281b745c3c2bbc9829 Stats: 589 lines in 28 files changed: 383 ins; 90 del; 116 mod 8306842: Classfile API performance improvements Reviewed-by: redestad ------------- PR: https://git.openjdk.org/jdk/pull/13671
