1 files changed, 0 insertions, 136 deletions
diff --git a/src/pkg/sync/mutex_test.go b/src/pkg/sync/mutex_test.go
deleted file mode 100644
index 151b25c10..000000000
--- a/src/pkg/sync/mutex_test.go
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright 2009 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.
-
-// GOMAXPROCS=10 go test
-
-package sync_test
-
-import (
-	"runtime"
-	. "sync"
-	"testing"
-)
-
-func HammerSemaphore(s *uint32, loops int, cdone chan bool) {
-	for i := 0; i < loops; i++ {
-		Runtime_Semacquire(s)
-		Runtime_Semrelease(s)
-	}
-	cdone <- true
-}
-
-func TestSemaphore(t *testing.T) {
-	s := new(uint32)
-	*s = 1
-	c := make(chan bool)
-	for i := 0; i < 10; i++ {
-		go HammerSemaphore(s, 1000, c)
-	}
-	for i := 0; i < 10; i++ {
-		<-c
-	}
-}
-
-func BenchmarkUncontendedSemaphore(b *testing.B) {
-	s := new(uint32)
-	*s = 1
-	HammerSemaphore(s, b.N, make(chan bool, 2))
-}
-
-func BenchmarkContendedSemaphore(b *testing.B) {
-	b.StopTimer()
-	s := new(uint32)
-	*s = 1
-	c := make(chan bool)
-	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(2))
-	b.StartTimer()
-
-	go HammerSemaphore(s, b.N/2, c)
-	go HammerSemaphore(s, b.N/2, c)
-	<-c
-	<-c
-}
-
-func HammerMutex(m *Mutex, loops int, cdone chan bool) {
-	for i := 0; i < loops; i++ {
-		m.Lock()
-		m.Unlock()
-	}
-	cdone <- true
-}
-
-func TestMutex(t *testing.T) {
-	m := new(Mutex)
-	c := make(chan bool)
-	for i := 0; i < 10; i++ {
-		go HammerMutex(m, 1000, c)
-	}
-	for i := 0; i < 10; i++ {
-		<-c
-	}
-}
-
-func TestMutexPanic(t *testing.T) {
-	defer func() {
-		if recover() == nil {
-			t.Fatalf("unlock of unlocked mutex did not panic")
-		}
-	}()
-
-	var mu Mutex
-	mu.Lock()
-	mu.Unlock()
-	mu.Unlock()
-}
-
-func BenchmarkMutexUncontended(b *testing.B) {
-	type PaddedMutex struct {
-		Mutex
-		pad [128]uint8
-	}
-	b.RunParallel(func(pb *testing.PB) {
-		var mu PaddedMutex
-		for pb.Next() {
-			mu.Lock()
-			mu.Unlock()
-		}
-	})
-}
-
-func benchmarkMutex(b *testing.B, slack, work bool) {
-	var mu Mutex
-	if slack {
-		b.SetParallelism(10)
-	}
-	b.RunParallel(func(pb *testing.PB) {
-		foo := 0
-		for pb.Next() {
-			mu.Lock()
-			mu.Unlock()
-			if work {
-				for i := 0; i < 100; i++ {
-					foo *= 2
-					foo /= 2
-				}
-			}
-		}
-		_ = foo
-	})
-}
-
-func BenchmarkMutex(b *testing.B) {
-	benchmarkMutex(b, false, false)
-}
-
-func BenchmarkMutexSlack(b *testing.B) {
-	benchmarkMutex(b, true, false)
-}
-
-func BenchmarkMutexWork(b *testing.B) {
-	benchmarkMutex(b, false, true)
-}
-
-func BenchmarkMutexWorkSlack(b *testing.B) {
-	benchmarkMutex(b, true, true)
-}