This PR is based on the work of @mernst-github and aims to implement an _internal_ thread-local 'stack' allocator, which works like a dynamically sized arena, but with reset functionality to reset the allocated size back to a certain level. The underlying memory could stay around between calls, which could improve performance.
Re-allocated segments are not zeroed between allocations. ------------- Commit messages: - Remove interface level - Add benchmark class with virtual executor - Add rudimentary documentation - Convert class to record and add @ForceInline - Refactor and add benchmark - Merge branch 'master' into internal-allocator - Change set from previous PR Changes: https://git.openjdk.org/jdk/pull/24829/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24829&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349146 Stats: 589 lines in 8 files changed: 568 ins; 15 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/24829.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24829/head:pull/24829 PR: https://git.openjdk.org/jdk/pull/24829
