1 files changed, 0 insertions, 167 deletions
diff --git a/src/pkg/sync/mutex_test.go b/src/pkg/sync/mutex_test.go
deleted file mode 100644
index d5ada8567..000000000
--- a/src/pkg/sync/mutex_test.go
+++ /dev/null
@@ -1,167 +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 gotest
-
-package sync_test
-
-import (
-	"runtime"
-	. "sync"
-	"sync/atomic"
-	"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
-	}
-	const CallsPerSched = 1000
-	procs := runtime.GOMAXPROCS(-1)
-	N := int32(b.N / CallsPerSched)
-	c := make(chan bool, procs)
-	for p := 0; p < procs; p++ {
-		go func() {
-			var mu PaddedMutex
-			for atomic.AddInt32(&N, -1) >= 0 {
-				runtime.Gosched()
-				for g := 0; g < CallsPerSched; g++ {
-					mu.Lock()
-					mu.Unlock()
-				}
-			}
-			c <- true
-		}()
-	}
-	for p := 0; p < procs; p++ {
-		<-c
-	}
-}
-
-func benchmarkMutex(b *testing.B, slack, work bool) {
-	const (
-		CallsPerSched  = 1000
-		LocalWork      = 100
-		GoroutineSlack = 10
-	)
-	procs := runtime.GOMAXPROCS(-1)
-	if slack {
-		procs *= GoroutineSlack
-	}
-	N := int32(b.N / CallsPerSched)
-	c := make(chan bool, procs)
-	var mu Mutex
-	for p := 0; p < procs; p++ {
-		go func() {
-			foo := 0
-			for atomic.AddInt32(&N, -1) >= 0 {
-				runtime.Gosched()
-				for g := 0; g < CallsPerSched; g++ {
-					mu.Lock()
-					mu.Unlock()
-					if work {
-						for i := 0; i < LocalWork; i++ {
-							foo *= 2
-							foo /= 2
-						}
-					}
-				}
-			}
-			c <- foo == 42
-		}()
-	}
-	for p := 0; p < procs; p++ {
-		<-c
-	}
-}
-
-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)
-}