On Wed, 28 Jun 2023 17:06:56 GMT, 温绍锦 <d...@openjdk.org> wrote:
> Optimization for: > Integer.toString > Long.toString > StringBuilder#append(int) > > # Benchmark Result > > > sh make/devkit/createJMHBundle.sh > bash configure --with-jmh=build/jmh/jars > make test TEST="micro:java.lang.Integers.toString*" > make test TEST="micro:java.lang.Longs.toString*" > make test TEST="micro:java.lang.StringBuilders.toStringCharWithInt8" > > > ## 1. > [aliyun_ecs_c8i.xlarge](https://help.aliyun.com/document_detail/25378.html#c8i) > * cpu : intel xeon sapphire rapids (x64) > > ``` diff > -Benchmark (size) Mode Cnt Score Error Units (baseline) > -Integers.toStringBig 500 avgt 15 6.825 ± 0.023 us/op > -Integers.toStringSmall 500 avgt 15 4.823 ± 0.023 us/op > -Integers.toStringTiny 500 avgt 15 3.878 ± 0.101 us/op > > +Benchmark (size) Mode Cnt Score Error Units (PR Update > 04 f4aa1989) > +Integers.toStringBig 500 avgt 15 6.002 ± 0.054 us/op (+13.71%) > +Integers.toStringSmall 500 avgt 15 4.025 ± 0.020 us/op (+19.82%) > +Integers.toStringTiny 500 avgt 15 3.874 ± 0.067 us/op (+0.10%) > > -Benchmark (size) Mode Cnt Score Error Units (baseline) > -Longs.toStringBig 500 avgt 15 9.224 ± 0.021 us/op > -Longs.toStringSmall 500 avgt 15 4.621 ± 0.087 us/op > > +Benchmark (size) Mode Cnt Score Error Units (PR Update 04 > f4aa1989) > +Longs.toStringBig 500 avgt 15 7.483 ± 0.018 us/op (+23.26%) > +Longs.toStringSmall 500 avgt 15 4.020 ± 0.016 us/op (+14.95%) > > -Benchmark Mode Cnt Score Error Units > (baseline) > -StringBuilders.toStringCharWithInt8 avgt 15 89.327 ± 0.733 ns/op > > +Benchmark Mode Cnt Score Error Units (PR > Update 04 f4aa1989) > +StringBuilders.toStringCharWithInt8 avgt 15 36.639 ± 0.422 ns/op > (+143.80%) > > > > ## 2. > [aliyun_ecs_c8a.xlarge](https://help.aliyun.com/document_detail/25378.html#c8a) > * cpu : amd epc genoa (x64) > > ``` diff > -Benchmark (size) Mode Cnt Score Error Units (baseline) > -Integers.toStringBig 500 avgt 15 6.753 ± 0.007 us/op > -Integers.toStringSmall 500 avgt 15 4.470 ± 0.005 us/op > -Integers.toStringTiny 500 avgt 15 2.764 ± 0.020 us/op > > +Benchmark (size) Mode Cnt Score Error Units (PR Update > 04 f4aa1989) > +Integers.toStringBig 500 avgt 15 5.036 ± 0.005 us/op (+34.09%) > +Integers.toStringSmall 500 avgt 15 3.491 ± 0.025 us/op (+28.04%) > +Integers.toStringTiny 5... This pull request has now been integrated. Changeset: 4b43c25f Author: shaojin.wensj <shaojin.we...@alibaba-inc.com> Committer: Yi Yang <yy...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/4b43c25fe382b5ee805a2d1b173fdd32d8da7fad Stats: 361 lines in 8 files changed: 189 ins; 146 del; 26 mod 8310929: Optimization for Integer.toString Reviewed-by: redestad, rriggs ------------- PR: https://git.openjdk.org/jdk/pull/14699
