On Wed, 4 Dec 2024 08:40:31 GMT, Per Minborg <pminb...@openjdk.org> wrote:
> This PR proposes to fix a performance regression (on x64 platforms) for > 32-bit strings introduced by > [JDK-8345120](https://bugs.openjdk.org/browse/JDK-8345120). > > The PR also fixes a performance regression in the benchmarks caused by using > the wrong type for `MemorySegment`. > > Regrettably, this PR uses different code paths for various architectures. > This gives optimum performance for all platforms at the expense of slightly > more code complexity. More specifically, the PR gives a ~15% performance > improvement on x64 platforms for longer 32-bit strings. > > Passes tier1-tier3. This pull request has now been integrated. Changeset: 06c44dd5 Author: Per Minborg <pminb...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/06c44dd568d91e1bd68f60fd3e57abcbe97e5dca Stats: 31 lines in 2 files changed: 7 ins; 2 del; 22 mod 8345465: Fix performance regression on x64 after JDK-8345120 Reviewed-by: mcimadamore ------------- PR: https://git.openjdk.org/jdk/pull/22539
