On Fri, 23 Jun 2023 04:22:07 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: > > remove unused import Latest benchmark results: ### aliyun_c8i.xlarge (+23.25% ) cpu : intel xeon sapphire rapids (x64) ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 62.457 ± 0.226 ops/us +UUIDBench.toString 20000 thrpt 15 76.979 ± 1.011 ops/us ### aliyun_c8a.xlarge (+23.09%) cpu : amd epc genoa (x64) ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 65.673 ± 0.110 ops/us +UUIDBench.toString 20000 thrpt 15 80.839 ± 0.278 ops/us ### aliyun_c8y.xlarge (+71.92%) cpu : aliyun yitian 710 (aarch64) ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 32.198 ± 0.907 ops/us +UUIDBench.toString 20000 thrpt 15 55.356 ± 1.882 ops/us ### aws_c5.xlarge (+36.23% ) aws x64 ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 46.003 ± 0.291 ops/us +UUIDBench.toString 20000 thrpt 15 62.673 ± 0.259 ops/us ### MacBook Pro M1 Pro (+179.94%) ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 36.875 ± 0.902 ops/us +UUIDBench.toString 20000 thrpt 15 103.229 ± 1.063 ops/us ### Orange Pi 5 Plus (+71.16%) cpu : RK3588 (aarch64) ``` diff Benchmark (size) Mode Cnt Score Error Units -UUIDBench.toString 20000 thrpt 15 21.691 ± 0.204 ops/us +UUIDBench.toString 20000 thrpt 15 38.211 ± 0.344 ops/us ------------- PR Comment: https://git.openjdk.org/jdk/pull/14578#issuecomment-1603676840
