I had the opportunity to revisit my interface dispatch benchmark (https://github.com/robaho/go-dispatch-test <https://github.com/robaho/go-dispatch-test>).
Previously, the dispatching using pointer receivers was nearly 3x slower (i.e. 5.5 ns to 12.6 ns): goos: darwin goarch: amd64 pkg: github.com/robaho/go-dispatch-test BenchmarkIDispatch-8 300000000 5.56 ns/op BenchmarkDispatch-8 2000000000 1.57 ns/op BenchmarkArrayParms-8 200000 9265 ns/op PASS and goos: darwin goarch: amd64 pkg: github.com/robaho/go-dispatch-test BenchmarkIDispatch-8 100000000 12.6 ns/op BenchmarkDispatch-8 2000000000 1.57 ns/op PASS With the latest Go 1.22.4, the performance difference has reversed ! (tests have been combined for simplicity). goos: darwin goarch: amd64 pkg: github.com/robaho/go-dispatch-test cpu: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz BenchmarkIDispatch-8 535263746 2.118 ns/op BenchmarkIDispatchPtr-8 675721244 1.773 ns/op BenchmarkDispatch-8 1000000000 0.6953 ns/op BenchmarkArrayParms-8 184212 6440 ns/op PASS Pretty impressive work. The interface based dispatch is almost equal to the Java version now: Benchmark Mode Cnt Score Error Units TestJavaDispatch.TestArrayDispatch avgt 3 4775.994 ± 13310.309 ns/op TestJavaDispatch.TestDispatch avgt 3 0.941 ± 0.088 ns/op TestJavaDispatch.TestIDispatch avgt 3 1.331 ± 0.146 ns/op -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/E96FF86B-1EF9-4678-8DE4-11D4C7080C0E%40me.com.
