go/src/runtime/norace_test.go

// Syscall tests split stack between Entersyscall and Exitsyscall under race detector.
func BenchmarkSyscall(b *testing.B) { … }

func BenchmarkSyscallWork(b *testing.B) { … }

func BenchmarkSyscallExcess(b *testing.B) { … }

func BenchmarkSyscallExcessWork(b *testing.B) { … }

func benchmarkSyscall(b *testing.B, work, excess int) { … }