> Improve the performance of UUID::toString by using Long.expand and SWAR (SIMD > within a register) instead of table lookup. Eliminating the table lookup can > also avoid the performance degradation problem when the cache misses.
Shaojin Wen has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 16 additional commits since the last revision: - Merge remote-tracking branch 'upstream/master' into optim_uuid_to_string_202501 - simplify code - Remove redundant comments - use Long.expand - Merge remote-tracking branch 'upstream/master' into optim_uuid_to_string_202501 - refactor - from j3graham - add comments - use ByteArrayLittleEndian - ues Long.expand - ... and 6 more: https://git.openjdk.org/jdk/compare/6f6e5efd...878a3cb7 ------------- Changes: - all: https://git.openjdk.org/jdk/pull/22928/files - new: https://git.openjdk.org/jdk/pull/22928/files/55223571..878a3cb7 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=22928&range=03 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22928&range=02-03 Stats: 353363 lines in 4033 files changed: 118357 ins; 216754 del; 18252 mod Patch: https://git.openjdk.org/jdk/pull/22928.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22928/head:pull/22928 PR: https://git.openjdk.org/jdk/pull/22928
