What’s it look like when your run it through https://pkg.go.dev/golang.org/x/perf/cmd/benchstat which will provide a nice side by side comparison?
On Wed, 24 Apr 2024 at 19:26, 'Robert Engels' via golang-nuts < golang-nuts@googlegroups.com> wrote: > I have a fairly stable project github.com/robaho/fixed which is almost > 100% cpu bound. It doesn’t change so it makes a great way to compare the > performance of different Go versions using the same hardware. I took the > time to re-run the tests today. > > Using 1.21.17: > > BenchmarkAddFixed-8 2000000000 0.59 ns/op > 0 B/op 0 allocs/op > BenchmarkAddDecimal-8 5000000 243 ns/op > 176 B/op 8 allocs/op > BenchmarkAddBigInt-8 100000000 14.3 ns/op > 0 B/op 0 allocs/op > BenchmarkAddBigFloat-8 20000000 78.8 ns/op > 48 B/op 1 allocs/op > BenchmarkMulFixed-8 300000000 4.88 ns/op > 0 B/op 0 allocs/op > BenchmarkMulDecimal-8 20000000 72.0 ns/op > 80 B/op 2 allocs/op > BenchmarkMulBigInt-8 100000000 17.1 ns/op > 0 B/op 0 allocs/op > BenchmarkMulBigFloat-8 30000000 35.5 ns/op > 0 B/op 0 allocs/op > BenchmarkDivFixed-8 300000000 4.71 ns/op > 0 B/op 0 allocs/op > BenchmarkDivDecimal-8 2000000 779 ns/op > 568 B/op 21 allocs/op > BenchmarkDivBigInt-8 30000000 46.1 ns/op > 8 B/op 1 allocs/op > BenchmarkDivBigFloat-8 20000000 108 ns/op > 24 B/op 2 allocs/op > BenchmarkCmpFixed-8 2000000000 0.38 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpDecimal-8 200000000 8.05 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpBigInt-8 300000000 5.87 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpBigFloat-8 300000000 5.46 ns/op > 0 B/op 0 allocs/op > BenchmarkStringFixed-8 20000000 57.4 ns/op > 32 B/op 1 allocs/op > BenchmarkStringNFixed-8 20000000 55.6 ns/op > 32 B/op 1 allocs/op > BenchmarkStringDecimal-8 10000000 218 ns/op > 64 B/op 5 allocs/op > BenchmarkStringBigInt-8 10000000 122 ns/op > 24 B/op 2 allocs/op > BenchmarkStringBigFloat-8 3000000 416 ns/op > 192 B/op 8 allocs/op > BenchmarkWriteTo-8 30000000 45.8 ns/op > 18 B/op 0 allocs/op > > > and version 1.21.5: > > BenchmarkAddFixed-8 1000000000 0.9735 ns/op > 0 B/op 0 allocs/op > BenchmarkAddDecimal-8 14311995 69.99 ns/op > 80 B/op 2 allocs/op > BenchmarkAddBigInt-8 100000000 13.42 ns/op > 0 B/op 0 allocs/op > BenchmarkAddBigFloat-8 17506702 63.84 ns/op > 48 B/op 1 allocs/op > BenchmarkMulFixed-8 313983104 3.732 ns/op > 0 B/op 0 allocs/op > BenchmarkMulDecimal-8 18046520 66.59 ns/op > 80 B/op 2 allocs/op > BenchmarkMulBigInt-8 100000000 10.79 ns/op > 0 B/op 0 allocs/op > BenchmarkMulBigFloat-8 49186024 24.30 ns/op > 0 B/op 0 allocs/op > BenchmarkDivFixed-8 306888069 3.721 ns/op > 0 B/op 0 allocs/op > BenchmarkDivDecimal-8 2510688 462.4 ns/op > 384 B/op 12 allocs/op > BenchmarkDivBigInt-8 33993822 37.02 ns/op > 8 B/op 1 allocs/op > BenchmarkDivBigFloat-8 9415330 111.5 ns/op > 24 B/op 2 allocs/op > BenchmarkCmpFixed-8 1000000000 0.2548 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpDecimal-8 168714549 7.086 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpBigInt-8 234895634 4.952 ns/op > 0 B/op 0 allocs/op > BenchmarkCmpBigFloat-8 260814464 4.503 ns/op > 0 B/op 0 allocs/op > BenchmarkStringFixed-8 23725470 50.57 ns/op > 24 B/op 1 allocs/op > BenchmarkStringNFixed-8 23666628 50.67 ns/op > 24 B/op 1 allocs/op > BenchmarkStringDecimal-8 5665790 200.1 ns/op > 56 B/op 4 allocs/op > BenchmarkStringBigInt-8 10596398 100.2 ns/op > 16 B/op 1 allocs/op > BenchmarkStringBigFloat-8 2922332 391.2 ns/op > 176 B/op 7 allocs/op > BenchmarkWriteTo-8 45734523 31.53 ns/op > 23 B/op 0 allocs/op > > which is pretty impressive across the board. > > Only 2 tests show any degradation and most show significant improvement. > > On the two that degrade, AddFixed is a fairly trivial add of 2 longs, so > that is surprising. Strangely, WriteTo shows a different number of B/op on > different runs (all of the other tests are stable). > > -- > 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/A6412E4C-03BD-477B-A725-06510DDD618A%40me.com > <https://groups.google.com/d/msgid/golang-nuts/A6412E4C-03BD-477B-A725-06510DDD618A%40me.com?utm_medium=email&utm_source=footer> > . > -- 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/CAA38peafR9MkAiTcZYH8c622BTtC7r_Bbv9gKAVEPjpMsvmbaA%40mail.gmail.com.
