X-Git-Url: https://git.josue.xyz/?a=blobdiff_plain;f=.config%2Fcoc%2Fextensions%2Fcoc-go-data%2Ftools%2Fpkg%2Fmod%2Fgolang.org%2Fx%2Ftools%40v0.0.0-20201028153306-37f0764111ff%2Finternal%2Fevent%2Fbench_test.go;fp=.config%2Fcoc%2Fextensions%2Fcoc-go-data%2Ftools%2Fpkg%2Fmod%2Fgolang.org%2Fx%2Ftools%40v0.0.0-20201028153306-37f0764111ff%2Finternal%2Fevent%2Fbench_test.go;h=138b236948fa50b8508c46fa45500021da54329d;hb=4d07c77cf4d78cab8639e13ddc3c22495e585b0b;hp=0000000000000000000000000000000000000000;hpb=b3950616b54221c40a7dab9099bda675007e5b6e;p=dotfiles%2F.git diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/event/bench_test.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/event/bench_test.go new file mode 100644 index 00000000..138b2369 --- /dev/null +++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/internal/event/bench_test.go @@ -0,0 +1,154 @@ +package event_test + +import ( + "context" + "io/ioutil" + "log" + "testing" + + "golang.org/x/tools/internal/event" + "golang.org/x/tools/internal/event/core" + "golang.org/x/tools/internal/event/export" + "golang.org/x/tools/internal/event/keys" + "golang.org/x/tools/internal/event/label" +) + +type Hooks struct { + A func(ctx context.Context, a int) (context.Context, func()) + B func(ctx context.Context, b string) (context.Context, func()) +} + +var ( + aValue = keys.NewInt("a", "") + bValue = keys.NewString("b", "") + aCount = keys.NewInt64("aCount", "Count of time A is called.") + aStat = keys.NewInt("aValue", "A value.") + bCount = keys.NewInt64("B", "Count of time B is called.") + bLength = keys.NewInt("BLen", "B length.") + + Baseline = Hooks{ + A: func(ctx context.Context, a int) (context.Context, func()) { + return ctx, func() {} + }, + B: func(ctx context.Context, b string) (context.Context, func()) { + return ctx, func() {} + }, + } + + StdLog = Hooks{ + A: func(ctx context.Context, a int) (context.Context, func()) { + log.Printf("A where a=%d", a) + return ctx, func() {} + }, + B: func(ctx context.Context, b string) (context.Context, func()) { + log.Printf("B where b=%q", b) + return ctx, func() {} + }, + } + + Log = Hooks{ + A: func(ctx context.Context, a int) (context.Context, func()) { + core.Log1(ctx, "A", aValue.Of(a)) + return ctx, func() {} + }, + B: func(ctx context.Context, b string) (context.Context, func()) { + core.Log1(ctx, "B", bValue.Of(b)) + return ctx, func() {} + }, + } + + Trace = Hooks{ + A: func(ctx context.Context, a int) (context.Context, func()) { + return core.Start1(ctx, "A", aValue.Of(a)) + }, + B: func(ctx context.Context, b string) (context.Context, func()) { + return core.Start1(ctx, "B", bValue.Of(b)) + }, + } + + Stats = Hooks{ + A: func(ctx context.Context, a int) (context.Context, func()) { + core.Metric1(ctx, aStat.Of(a)) + core.Metric1(ctx, aCount.Of(1)) + return ctx, func() {} + }, + B: func(ctx context.Context, b string) (context.Context, func()) { + core.Metric1(ctx, bLength.Of(len(b))) + core.Metric1(ctx, bCount.Of(1)) + return ctx, func() {} + }, + } + + initialList = []int{0, 1, 22, 333, 4444, 55555, 666666, 7777777} + stringList = []string{ + "A value", + "Some other value", + "A nice longer value but not too long", + "V", + "", + "ı", + "prime count of values", + } +) + +type namedBenchmark struct { + name string + test func(*testing.B) +} + +func Benchmark(b *testing.B) { + b.Run("Baseline", Baseline.runBenchmark) + b.Run("StdLog", StdLog.runBenchmark) + benchmarks := []namedBenchmark{ + {"Log", Log.runBenchmark}, + {"Trace", Trace.runBenchmark}, + {"Stats", Stats.runBenchmark}, + } + + event.SetExporter(nil) + for _, t := range benchmarks { + b.Run(t.name+"NoExporter", t.test) + } + + event.SetExporter(noopExporter) + for _, t := range benchmarks { + b.Run(t.name+"Noop", t.test) + } + + event.SetExporter(export.Spans(export.LogWriter(ioutil.Discard, false))) + for _, t := range benchmarks { + b.Run(t.name, t.test) + } +} + +func A(ctx context.Context, hooks Hooks, a int) int { + ctx, done := hooks.A(ctx, a) + defer done() + return B(ctx, hooks, a, stringList[a%len(stringList)]) +} + +func B(ctx context.Context, hooks Hooks, a int, b string) int { + _, done := hooks.B(ctx, b) + defer done() + return a + len(b) +} + +func (hooks Hooks) runBenchmark(b *testing.B) { + ctx := context.Background() + b.ReportAllocs() + b.ResetTimer() + var acc int + for i := 0; i < b.N; i++ { + for _, value := range initialList { + acc += A(ctx, hooks, value) + } + } +} + +func init() { + log.SetOutput(ioutil.Discard) +} + +func noopExporter(ctx context.Context, ev core.Event, lm label.Map) context.Context { + return ctx +}