diff options
Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/github.com/pkg/errors@v0.9.1/bench_test.go | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/pkg/errors@v0.9.1/bench_test.go b/dependencies/pkg/mod/github.com/pkg/errors@v0.9.1/bench_test.go new file mode 100644 index 0000000..c906870 --- /dev/null +++ b/dependencies/pkg/mod/github.com/pkg/errors@v0.9.1/bench_test.go @@ -0,0 +1,110 @@ +// +build go1.7 + +package errors + +import ( + "fmt" + "testing" + + stderrors "errors" +) + +func noErrors(at, depth int) error { + if at >= depth { + return stderrors.New("no error") + } + return noErrors(at+1, depth) +} + +func yesErrors(at, depth int) error { + if at >= depth { + return New("ye error") + } + return yesErrors(at+1, depth) +} + +// GlobalE is an exported global to store the result of benchmark results, +// preventing the compiler from optimising the benchmark functions away. +var GlobalE interface{} + +func BenchmarkErrors(b *testing.B) { + type run struct { + stack int + std bool + } + runs := []run{ + {10, false}, + {10, true}, + {100, false}, + {100, true}, + {1000, false}, + {1000, true}, + } + for _, r := range runs { + part := "pkg/errors" + if r.std { + part = "errors" + } + name := fmt.Sprintf("%s-stack-%d", part, r.stack) + b.Run(name, func(b *testing.B) { + var err error + f := yesErrors + if r.std { + f = noErrors + } + b.ReportAllocs() + for i := 0; i < b.N; i++ { + err = f(0, r.stack) + } + b.StopTimer() + GlobalE = err + }) + } +} + +func BenchmarkStackFormatting(b *testing.B) { + type run struct { + stack int + format string + } + runs := []run{ + {10, "%s"}, + {10, "%v"}, + {10, "%+v"}, + {30, "%s"}, + {30, "%v"}, + {30, "%+v"}, + {60, "%s"}, + {60, "%v"}, + {60, "%+v"}, + } + + var stackStr string + for _, r := range runs { + name := fmt.Sprintf("%s-stack-%d", r.format, r.stack) + b.Run(name, func(b *testing.B) { + err := yesErrors(0, r.stack) + b.ReportAllocs() + b.ResetTimer() + for i := 0; i < b.N; i++ { + stackStr = fmt.Sprintf(r.format, err) + } + b.StopTimer() + }) + } + + for _, r := range runs { + name := fmt.Sprintf("%s-stacktrace-%d", r.format, r.stack) + b.Run(name, func(b *testing.B) { + err := yesErrors(0, r.stack) + st := err.(*fundamental).stack.StackTrace() + b.ReportAllocs() + b.ResetTimer() + for i := 0; i < b.N; i++ { + stackStr = fmt.Sprintf(r.format, st) + } + b.StopTimer() + }) + } + GlobalE = stackStr +} |