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Current Path: /opt/golang/1.22.0/src/runtime/internal/atomic

opt / golang / 1.22.0 / src / runtime / internal / atomic /

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📄 atomic_386.go(2.22 KB)
📄 atomic_386.s(6.53 KB)
📄 atomic_amd64.go(2.46 KB)
📄 atomic_amd64.s(5.18 KB)
📄 atomic_andor_generic.go(1.06 KB)
📄 atomic_andor_test.go(5.14 KB)
📄 atomic_arm.go(4.74 KB)
📄 atomic_arm.s(5.69 KB)
📄 atomic_arm64.go(2.15 KB)
📄 atomic_arm64.s(8.26 KB)
📄 atomic_loong64.go(1.76 KB)
📄 atomic_loong64.s(5.25 KB)
📄 atomic_mips64x.go(1.77 KB)
📄 atomic_mips64x.s(6.08 KB)
📄 atomic_mipsx.go(2.66 KB)
📄 atomic_mipsx.s(4.3 KB)
📄 atomic_ppc64x.go(2.12 KB)
📄 atomic_ppc64x.s(7.49 KB)
📄 atomic_riscv64.go(2.03 KB)
📄 atomic_riscv64.s(6.99 KB)
📄 atomic_s390x.go(2.12 KB)
📄 atomic_s390x.s(5.89 KB)
📄 atomic_test.go(8.52 KB)
📄 atomic_wasm.go(5.32 KB)
📄 atomic_wasm.s(269 B)
📄 bench_test.go(3.24 KB)
📄 doc.go(771 B)
📄 stubs.go(1.23 KB)
📄 sys_linux_arm.s(2.84 KB)
📄 sys_nonlinux_arm.s(1.33 KB)
📄 types.go(14.23 KB)
📄 types_64bit.go(1.1 KB)
📄 unaligned.go(246 B)

Editing: bench_test.go

// Copyright 2016 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.

package atomic_test

import (
	"runtime/internal/atomic"
	"testing"
)

var sink any

func BenchmarkAtomicLoad64(b *testing.B) {
	var x uint64
	sink = &x
	for i := 0; i < b.N; i++ {
		_ = atomic.Load64(&x)
	}
}

func BenchmarkAtomicStore64(b *testing.B) {
	var x uint64
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.Store64(&x, 0)
	}
}

func BenchmarkAtomicLoad(b *testing.B) {
	var x uint32
	sink = &x
	for i := 0; i < b.N; i++ {
		_ = atomic.Load(&x)
	}
}

func BenchmarkAtomicStore(b *testing.B) {
	var x uint32
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.Store(&x, 0)
	}
}

func BenchmarkAnd8(b *testing.B) {
	var x [512]uint8 // give byte its own cache line
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.And8(&x[255], uint8(i))
	}
}

func BenchmarkAnd(b *testing.B) {
	var x [128]uint32 // give x its own cache line
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.And(&x[63], uint32(i))
	}
}

func BenchmarkAnd8Parallel(b *testing.B) {
	var x [512]uint8 // give byte its own cache line
	sink = &x
	b.RunParallel(func(pb *testing.PB) {
		i := uint8(0)
		for pb.Next() {
			atomic.And8(&x[255], i)
			i++
		}
	})
}

func BenchmarkAndParallel(b *testing.B) {
	var x [128]uint32 // give x its own cache line
	sink = &x
	b.RunParallel(func(pb *testing.PB) {
		i := uint32(0)
		for pb.Next() {
			atomic.And(&x[63], i)
			i++
		}
	})
}

func BenchmarkOr8(b *testing.B) {
	var x [512]uint8 // give byte its own cache line
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.Or8(&x[255], uint8(i))
	}
}

func BenchmarkOr(b *testing.B) {
	var x [128]uint32 // give x its own cache line
	sink = &x
	for i := 0; i < b.N; i++ {
		atomic.Or(&x[63], uint32(i))
	}
}

func BenchmarkOr8Parallel(b *testing.B) {
	var x [512]uint8 // give byte its own cache line
	sink = &x
	b.RunParallel(func(pb *testing.PB) {
		i := uint8(0)
		for pb.Next() {
			atomic.Or8(&x[255], i)
			i++
		}
	})
}

func BenchmarkOrParallel(b *testing.B) {
	var x [128]uint32 // give x its own cache line
	sink = &x
	b.RunParallel(func(pb *testing.PB) {
		i := uint32(0)
		for pb.Next() {
			atomic.Or(&x[63], i)
			i++
		}
	})
}

func BenchmarkXadd(b *testing.B) {
	var x uint32
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			atomic.Xadd(ptr, 1)
		}
	})
}

func BenchmarkXadd64(b *testing.B) {
	var x uint64
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			atomic.Xadd64(ptr, 1)
		}
	})
}

func BenchmarkCas(b *testing.B) {
	var x uint32
	x = 1
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			atomic.Cas(ptr, 1, 0)
			atomic.Cas(ptr, 0, 1)
		}
	})
}

func BenchmarkCas64(b *testing.B) {
	var x uint64
	x = 1
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			atomic.Cas64(ptr, 1, 0)
			atomic.Cas64(ptr, 0, 1)
		}
	})
}
func BenchmarkXchg(b *testing.B) {
	var x uint32
	x = 1
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		var y uint32
		y = 1
		for pb.Next() {
			y = atomic.Xchg(ptr, y)
			y += 1
		}
	})
}

func BenchmarkXchg64(b *testing.B) {
	var x uint64
	x = 1
	ptr := &x
	b.RunParallel(func(pb *testing.PB) {
		var y uint64
		y = 1
		for pb.Next() {
			y = atomic.Xchg64(ptr, y)
			y += 1
		}
	})
}

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Editing: bench_test.go

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