--- /dev/null
+// run
+
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test independent goroutines modifying a comprehensive
+// variety of vars during aggressive garbage collection.
+
+// The point is to catch GC regressions like fixedbugs/issue22781.go
+
+package main
+
+import (
+ "errors"
+ "runtime"
+ "runtime/debug"
+ "sync"
+)
+
+const (
+ goroutines = 8
+ allocs = 8
+ mods = 8
+
+ length = 9
+)
+
+func main() {
+ debug.SetGCPercent(1)
+ var wg sync.WaitGroup
+ for i := 0; i < goroutines; i++ {
+ for _, t := range types {
+ err := t.valid()
+ if err != nil {
+ panic(err)
+ }
+ wg.Add(1)
+ go func(f modifier) {
+ var wg2 sync.WaitGroup
+ for j := 0; j < allocs; j++ {
+ wg2.Add(1)
+ go func() {
+ f.t()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.pointerT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.arrayT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.sliceT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.mapT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.mapPointerKeyT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.chanT()
+ wg2.Done()
+ }()
+ wg2.Add(1)
+ go func() {
+ f.interfaceT()
+ wg2.Done()
+ }()
+ }
+ wg2.Wait()
+ wg.Done()
+ }(t)
+ }
+ }
+ wg.Wait()
+}
+
+type modifier struct {
+ name string
+ t func()
+ pointerT func()
+ arrayT func()
+ sliceT func()
+ mapT func()
+ mapPointerKeyT func()
+ chanT func()
+ interfaceT func()
+}
+
+func (a modifier) valid() error {
+ switch {
+ case a.name == "":
+ return errors.New("modifier without name")
+ case a.t == nil:
+ return errors.New(a.name + " missing t")
+ case a.pointerT == nil:
+ return errors.New(a.name + " missing pointerT")
+ case a.arrayT == nil:
+ return errors.New(a.name + " missing arrayT")
+ case a.sliceT == nil:
+ return errors.New(a.name + " missing sliceT")
+ case a.mapT == nil:
+ return errors.New(a.name + " missing mapT")
+ case a.mapPointerKeyT == nil:
+ return errors.New(a.name + " missing mapPointerKeyT")
+ case a.chanT == nil:
+ return errors.New(a.name + " missing chanT")
+ case a.interfaceT == nil:
+ return errors.New(a.name + " missing interfaceT")
+ default:
+ return nil
+ }
+}
+
+var types = []modifier{
+ modifier{
+ name: "bool",
+ t: func() {
+ var a bool
+ for i := 0; i < mods; i++ {
+ a = !a
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *bool { return new(bool) }()
+ for i := 0; i < mods; i++ {
+ *a = !*a
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]bool{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] = !a[j]
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]bool, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] = !a[j]
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[bool]bool)
+ for i := 0; i < mods; i++ {
+ a[false] = !a[false]
+ a[true] = !a[true]
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*bool]bool)
+ for i := 0; i < length; i++ {
+ a[new(bool)] = false
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, v := range a {
+ a[k] = !v
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan bool)
+ for i := 0; i < mods; i++ {
+ go func() { a <- false }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(bool(false))
+ for i := 0; i < mods; i++ {
+ a = !a.(bool)
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uint8",
+ t: func() {
+ var u uint8
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uint8 { return new(uint8) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uint8{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uint8, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uint8]uint8)
+ for i := 0; i < length; i++ {
+ a[uint8(i)] = uint8(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uint8]uint8)
+ for i := 0; i < length; i++ {
+ a[new(uint8)] = uint8(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uint8)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uint8(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uint8(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uint8) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uint16",
+ t: func() {
+ var u uint16
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uint16 { return new(uint16) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uint16{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uint16, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uint16]uint16)
+ for i := 0; i < length; i++ {
+ a[uint16(i)] = uint16(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uint16]uint16)
+ for i := 0; i < length; i++ {
+ a[new(uint16)] = uint16(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uint16)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uint16(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uint16(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uint16) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uint32",
+ t: func() {
+ var u uint32
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uint32 { return new(uint32) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uint32{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uint32, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uint32]uint32)
+ for i := 0; i < length; i++ {
+ a[uint32(i)] = uint32(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uint32]uint32)
+ for i := 0; i < length; i++ {
+ a[new(uint32)] = uint32(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uint32)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uint32(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uint32(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uint32) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uint64",
+ t: func() {
+ var u uint64
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uint64 { return new(uint64) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uint64{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uint64, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uint64]uint64)
+ for i := 0; i < length; i++ {
+ a[uint64(i)] = uint64(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uint64]uint64)
+ for i := 0; i < length; i++ {
+ a[new(uint64)] = uint64(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uint64)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uint64(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uint64(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uint64) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "int8",
+ t: func() {
+ var u int8
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *int8 { return new(int8) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]int8{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]int8, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[int8]int8)
+ for i := 0; i < length; i++ {
+ a[int8(i)] = int8(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*int8]int8)
+ for i := 0; i < length; i++ {
+ a[new(int8)] = int8(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan int8)
+ for i := 0; i < mods; i++ {
+ go func() { a <- int8(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(int8(0))
+ for i := 0; i < mods; i++ {
+ a = a.(int8) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "int16",
+ t: func() {
+ var u int16
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *int16 { return new(int16) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]int16{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]int16, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[int16]int16)
+ for i := 0; i < length; i++ {
+ a[int16(i)] = int16(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*int16]int16)
+ for i := 0; i < length; i++ {
+ a[new(int16)] = int16(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan int16)
+ for i := 0; i < mods; i++ {
+ go func() { a <- int16(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(int16(0))
+ for i := 0; i < mods; i++ {
+ a = a.(int16) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "int32",
+ t: func() {
+ var u int32
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *int32 { return new(int32) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]int32{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]int32, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[int32]int32)
+ for i := 0; i < length; i++ {
+ a[int32(i)] = int32(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*int32]int32)
+ for i := 0; i < length; i++ {
+ a[new(int32)] = int32(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan int32)
+ for i := 0; i < mods; i++ {
+ go func() { a <- int32(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(int32(0))
+ for i := 0; i < mods; i++ {
+ a = a.(int32) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "int64",
+ t: func() {
+ var u int64
+ for i := 0; i < mods; i++ {
+ u++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *int64 { return new(int64) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]int64{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]int64, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[int64]int64)
+ for i := 0; i < length; i++ {
+ a[int64(i)] = int64(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*int64]int64)
+ for i := 0; i < length; i++ {
+ a[new(int64)] = int64(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan int64)
+ for i := 0; i < mods; i++ {
+ go func() { a <- int64(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(int64(0))
+ for i := 0; i < mods; i++ {
+ a = a.(int64) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "float32",
+ t: func() {
+ u := float32(1.01)
+ for i := 0; i < mods; i++ {
+ u *= 1.01
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *float32 { return new(float32) }()
+ *a = 1.01
+ for i := 0; i < mods; i++ {
+ *a *= 1.01
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]float32{}
+ for i := 0; i < length; i++ {
+ a[i] = float32(1.01)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]float32, length)
+ for i := 0; i < length; i++ {
+ a[i] = float32(1.01)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[float32]float32)
+ for i := 0; i < length; i++ {
+ a[float32(i)] = float32(i) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= 1.01
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*float32]float32)
+ for i := 0; i < length; i++ {
+ a[new(float32)] = float32(i) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan float32)
+ for i := 0; i < mods; i++ {
+ go func() { a <- float32(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(float32(0))
+ for i := 0; i < mods; i++ {
+ a = a.(float32) * 1.01
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "float64",
+ t: func() {
+ u := float64(1.01)
+ for i := 0; i < mods; i++ {
+ u *= 1.01
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *float64 { return new(float64) }()
+ *a = 1.01
+ for i := 0; i < mods; i++ {
+ *a *= 1.01
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]float64{}
+ for i := 0; i < length; i++ {
+ a[i] = float64(1.01)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]float64, length)
+ for i := 0; i < length; i++ {
+ a[i] = float64(1.01)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[float64]float64)
+ for i := 0; i < length; i++ {
+ a[float64(i)] = float64(i) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= 1.01
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*float64]float64)
+ for i := 0; i < length; i++ {
+ a[new(float64)] = float64(i) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= 1.01
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan float64)
+ for i := 0; i < mods; i++ {
+ go func() { a <- float64(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(float64(0))
+ for i := 0; i < mods; i++ {
+ a = a.(float64) * 1.01
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "complex64",
+ t: func() {
+ c := complex64(complex(float32(1.01), float32(1.01)))
+ for i := 0; i < mods; i++ {
+ c = complex(real(c)*1.01, imag(c)*1.01)
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *complex64 { return new(complex64) }()
+ *a = complex64(complex(float32(1.01), float32(1.01)))
+ for i := 0; i < mods; i++ {
+ *a *= complex(real(*a)*1.01, imag(*a)*1.01)
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]complex64{}
+ for i := 0; i < length; i++ {
+ a[i] = complex64(complex(float32(1.01), float32(1.01)))
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= complex(real(a[j])*1.01, imag(a[j])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]complex64, length)
+ for i := 0; i < length; i++ {
+ a[i] = complex64(complex(float32(1.01), float32(1.01)))
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= complex(real(a[j])*1.01, imag(a[j])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[complex64]complex64)
+ for i := 0; i < length; i++ {
+ a[complex64(complex(float32(i), float32(i)))] = complex64(complex(float32(i), float32(i))) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= complex(real(a[k])*1.01, imag(a[k])*1.01)
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*complex64]complex64)
+ for i := 0; i < length; i++ {
+ a[new(complex64)] = complex64(complex(float32(i), float32(i))) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= complex(real(a[k])*1.01, imag(a[k])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan complex64)
+ for i := 0; i < mods; i++ {
+ go func() { a <- complex64(complex(float32(i), float32(i))) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(complex64(complex(float32(1.01), float32(1.01))))
+ for i := 0; i < mods; i++ {
+ a = a.(complex64) * complex(real(a.(complex64))*1.01, imag(a.(complex64))*1.01)
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "complex128",
+ t: func() {
+ c := complex128(complex(float64(1.01), float64(1.01)))
+ for i := 0; i < mods; i++ {
+ c = complex(real(c)*1.01, imag(c)*1.01)
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *complex128 { return new(complex128) }()
+ *a = complex128(complex(float64(1.01), float64(1.01)))
+ for i := 0; i < mods; i++ {
+ *a *= complex(real(*a)*1.01, imag(*a)*1.01)
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]complex128{}
+ for i := 0; i < length; i++ {
+ a[i] = complex128(complex(float64(1.01), float64(1.01)))
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= complex(real(a[j])*1.01, imag(a[j])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]complex128, length)
+ for i := 0; i < length; i++ {
+ a[i] = complex128(complex(float64(1.01), float64(1.01)))
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] *= complex(real(a[j])*1.01, imag(a[j])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[complex128]complex128)
+ for i := 0; i < length; i++ {
+ a[complex128(complex(float64(i), float64(i)))] = complex128(complex(float64(i), float64(i))) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= complex(real(a[k])*1.01, imag(a[k])*1.01)
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*complex128]complex128)
+ for i := 0; i < length; i++ {
+ a[new(complex128)] = complex128(complex(float64(i), float64(i))) + 0.01
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] *= complex(real(a[k])*1.01, imag(a[k])*1.01)
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan complex128)
+ for i := 0; i < mods; i++ {
+ go func() { a <- complex128(complex(float64(i), float64(i))) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(complex128(complex(float64(1.01), float64(1.01))))
+ for i := 0; i < mods; i++ {
+ a = a.(complex128) * complex(real(a.(complex128))*1.01, imag(a.(complex128))*1.01)
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "byte",
+ t: func() {
+ var a byte
+ for i := 0; i < mods; i++ {
+ a++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *byte { return new(byte) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]byte{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]byte, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[byte]byte)
+ for i := 0; i < length; i++ {
+ a[byte(i)] = byte(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*byte]byte)
+ for i := 0; i < length; i++ {
+ a[new(byte)] = byte(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan byte)
+ for i := 0; i < mods; i++ {
+ go func() { a <- byte(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(byte(0))
+ for i := 0; i < mods; i++ {
+ a = a.(byte) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "rune",
+ t: func() {
+ var a rune
+ for i := 0; i < mods; i++ {
+ a++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *rune { return new(rune) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]rune{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]rune, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[rune]rune)
+ for i := 0; i < length; i++ {
+ a[rune(i)] = rune(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*rune]rune)
+ for i := 0; i < length; i++ {
+ a[new(rune)] = rune(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan rune)
+ for i := 0; i < mods; i++ {
+ go func() { a <- rune(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(rune(0))
+ for i := 0; i < mods; i++ {
+ a = a.(rune) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uint",
+ t: func() {
+ var a uint
+ for i := 0; i < mods; i++ {
+ a++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uint { return new(uint) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uint{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uint, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uint]uint)
+ for i := 0; i < length; i++ {
+ a[uint(i)] = uint(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uint]uint)
+ for i := 0; i < length; i++ {
+ a[new(uint)] = uint(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uint)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uint(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uint(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uint) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "int",
+ t: func() {
+ var a int
+ for i := 0; i < mods; i++ {
+ a++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *int { return new(int) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]int{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]int, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[int]int)
+ for i := 0; i < length; i++ {
+ a[int(i)] = int(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*int]int)
+ for i := 0; i < length; i++ {
+ a[new(int)] = int(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan int)
+ for i := 0; i < mods; i++ {
+ go func() { a <- int(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(int(0))
+ for i := 0; i < mods; i++ {
+ a = a.(int) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "uintptr",
+ t: func() {
+ var a uintptr
+ for i := 0; i < mods; i++ {
+ a++
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ a := func() *uintptr { return new(uintptr) }()
+ for i := 0; i < mods; i++ {
+ *a++
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]uintptr{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]uintptr, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j]++
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[uintptr]uintptr)
+ for i := 0; i < length; i++ {
+ a[uintptr(i)] = uintptr(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*uintptr]uintptr)
+ for i := 0; i < length; i++ {
+ a[new(uintptr)] = uintptr(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k]++
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan uintptr)
+ for i := 0; i < mods; i++ {
+ go func() { a <- uintptr(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(uintptr(0))
+ for i := 0; i < mods; i++ {
+ a = a.(uintptr) + 1
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "string",
+ t: func() {
+ var s string
+ f := func(a string) string { return a }
+ for i := 0; i < mods; i++ {
+ s = str(i)
+ s = f(s)
+ }
+ },
+ pointerT: func() {
+ a := func() *string { return new(string) }()
+ for i := 0; i < mods; i++ {
+ *a = str(i)
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]string{}
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] = str(i)
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]string, length)
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j] = str(i)
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[string]string)
+ for i := 0; i < length; i++ {
+ a[string(i)] = str(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] = str(i)
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*string]string)
+ for i := 0; i < length; i++ {
+ a[new(string)] = str(i)
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for k, _ := range a {
+ a[k] = str(i)
+ runtime.Gosched()
+ }
+ }
+ },
+ chanT: func() {
+ a := make(chan string)
+ for i := 0; i < mods; i++ {
+ go func() { a <- str(i) }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(str(0))
+ f := func(a string) string { return a }
+ for i := 0; i < mods; i++ {
+ a = str(i)
+ a = f(a.(string))
+ runtime.Gosched()
+ }
+ },
+ },
+ modifier{
+ name: "structT",
+ t: func() {
+ s := newStructT()
+ for i := 0; i < mods; i++ {
+ s.u8++
+ s.u16++
+ s.u32++
+ s.u64++
+ s.i8++
+ s.i16++
+ s.i32++
+ s.i64++
+ s.f32 *= 1.01
+ s.f64 *= 1.01
+ s.c64 = complex(real(s.c64)*1.01, imag(s.c64)*1.01)
+ s.c128 = complex(real(s.c128)*1.01, imag(s.c128)*1.01)
+ s.b++
+ s.r++
+ s.u++
+ s.in++
+ s.uip++
+ s.s = str(i)
+ runtime.Gosched()
+ }
+ },
+ pointerT: func() {
+ s := func() *structT {
+ t := newStructT()
+ return &t
+ }()
+ for i := 0; i < mods; i++ {
+ s.u8++
+ s.u16++
+ s.u32++
+ s.u64++
+ s.i8++
+ s.i16++
+ s.i32++
+ s.i64++
+ s.f32 *= 1.01
+ s.f64 *= 1.01
+ s.c64 = complex(real(s.c64)*1.01, imag(s.c64)*1.01)
+ s.c128 = complex(real(s.c128)*1.01, imag(s.c128)*1.01)
+ s.b++
+ s.r++
+ s.u++
+ s.in++
+ s.uip++
+ s.s = str(i)
+ runtime.Gosched()
+ }
+ },
+ arrayT: func() {
+ a := [length]structT{}
+ for i := 0; i < len(a); i++ {
+ a[i] = newStructT()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j].u8++
+ a[j].u16++
+ a[j].u32++
+ a[j].u64++
+ a[j].i8++
+ a[j].i16++
+ a[j].i32++
+ a[j].i64++
+ a[j].f32 *= 1.01
+ a[j].f64 *= 1.01
+ a[j].c64 = complex(real(a[j].c64)*1.01, imag(a[j].c64)*1.01)
+ a[j].c128 = complex(real(a[j].c128)*1.01, imag(a[j].c128)*1.01)
+ a[j].b++
+ a[j].r++
+ a[j].u++
+ a[j].in++
+ a[j].uip++
+ a[j].s = str(i)
+ runtime.Gosched()
+ }
+ }
+ },
+ sliceT: func() {
+ a := make([]structT, length)
+ for i := 0; i < len(a); i++ {
+ a[i] = newStructT()
+ }
+ for i := 0; i < mods; i++ {
+ for j := 0; j < len(a); j++ {
+ a[j].u8++
+ a[j].u16++
+ a[j].u32++
+ a[j].u64++
+ a[j].i8++
+ a[j].i16++
+ a[j].i32++
+ a[j].i64++
+ a[j].f32 *= 1.01
+ a[j].f64 *= 1.01
+ a[j].c64 = complex(real(a[j].c64)*1.01, imag(a[j].c64)*1.01)
+ a[j].c128 = complex(real(a[j].c128)*1.01, imag(a[j].c128)*1.01)
+ a[j].b++
+ a[j].r++
+ a[j].u++
+ a[j].in++
+ a[j].uip++
+ a[j].s = str(i)
+ runtime.Gosched()
+ }
+ }
+ },
+ mapT: func() {
+ a := make(map[structT]structT)
+ for i := 0; i < length; i++ {
+ m := newStructT()
+ m.in = i
+ a[m] = newStructT()
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j, _ := range a {
+ m := a[j]
+ m.u8++
+ m.u16++
+ m.u32++
+ m.u64++
+ m.i8++
+ m.i16++
+ m.i32++
+ m.i64++
+ m.f32 *= 1.01
+ m.f64 *= 1.01
+ m.c64 = complex(real(a[j].c64)*1.01, imag(a[j].c64)*1.01)
+ m.c128 = complex(real(a[j].c128)*1.01, imag(a[j].c128)*1.01)
+ m.b++
+ m.r++
+ m.u++
+ m.in++
+ m.uip++
+ m.s = str(i)
+ a[j] = m
+ runtime.Gosched()
+ }
+ runtime.Gosched()
+ }
+ },
+ mapPointerKeyT: func() {
+ a := make(map[*structT]structT)
+ f := func() *structT {
+ m := newStructT()
+ return &m
+ }
+ for i := 0; i < length; i++ {
+ m := f()
+ m.in = i
+ a[m] = newStructT()
+ runtime.Gosched()
+ }
+ for i := 0; i < mods; i++ {
+ for j, _ := range a {
+ m := a[j]
+ m.u8++
+ m.u16++
+ m.u32++
+ m.u64++
+ m.i8++
+ m.i16++
+ m.i32++
+ m.i64++
+ m.f32 *= 1.01
+ m.f64 *= 1.01
+ m.c64 = complex(real(a[j].c64)*1.01, imag(a[j].c64)*1.01)
+ m.c128 = complex(real(a[j].c128)*1.01, imag(a[j].c128)*1.01)
+ m.b++
+ m.r++
+ m.u++
+ m.in++
+ m.uip++
+ m.s = str(i)
+ a[j] = m
+ runtime.Gosched()
+ }
+ runtime.Gosched()
+ }
+ },
+ chanT: func() {
+ a := make(chan structT)
+ for i := 0; i < mods; i++ {
+ go func() { a <- newStructT() }()
+ <-a
+ runtime.Gosched()
+ }
+ },
+ interfaceT: func() {
+ a := interface{}(newStructT())
+ for i := 0; i < mods; i++ {
+ a = a.(structT)
+ runtime.Gosched()
+ }
+ },
+ },
+}
+
+type structT struct {
+ u8 uint8
+ u16 uint16
+ u32 uint32
+ u64 uint64
+ i8 int8
+ i16 int16
+ i32 int32
+ i64 int64
+ f32 float32
+ f64 float64
+ c64 complex64
+ c128 complex128
+ b byte
+ r rune
+ u uint
+ in int
+ uip uintptr
+ s string
+}
+
+func newStructT() structT {
+ return structT{
+ f32: 1.01,
+ f64: 1.01,
+ c64: complex(float32(1.01), float32(1.01)),
+ c128: complex(float64(1.01), float64(1.01)),
+ }
+}
+
+func str(in int) string {
+ switch in % 3 {
+ case 0:
+ return "Hello"
+ case 1:
+ return "world"
+ case 2:
+ return "!"
+ }
+ return "?"
+}