On Wed, 21 Jun 2023 11:06:08 GMT, 温绍锦 <d...@openjdk.org> wrote:
>> By optimizing the implementation of java.lang.Long#fastUUID, the performance >> of the java.util.UUID#toString method can be significantly improved. >> >> The following are the test results of JMH: >> >> Benchmark Mode Cnt Score Error Units >> UUIDUtilsBenchmark.new thrpt 5 92676.550 ± 292.213 ops/ms >> UUIDUtilsBenchmark.original thrpt 5 37040.165 ± 1023.532 ops/ms > > 温绍锦 has updated the pull request incrementally with one additional commit > since the last revision: > > 8310502 : hex literal * benchmark code https://github.com/wenshao/jdk_8310502_test/blob/main/src/main/java/com/alibaba/openjdk/UUIDUtilsBenchmark.java * benchmark result Benchmark Mode Cnt Score Error Units HexUtilsBenchmark.fast thrpt 5 2971.864 ± 17.277 ops/ms HexUtilsBenchmark.jdk thrpt 5 1984.653 ± 11.733 ops/ms ------------- PR Comment: https://git.openjdk.org/jdk/pull/14578#issuecomment-1600843797
