// 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 "?"
}
|
