1 files changed, 0 insertions, 72 deletions
diff --git a/src/pkg/sync/runtime_sema_test.go b/src/pkg/sync/runtime_sema_test.go
deleted file mode 100644
index 5b7dd3df3..000000000
--- a/src/pkg/sync/runtime_sema_test.go
+++ /dev/null
@@ -1,72 +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.
-
-package sync_test
-
-import (
-	"runtime"
-	. "sync"
-	"testing"
-)
-
-func BenchmarkSemaUncontended(b *testing.B) {
-	type PaddedSem struct {
-		sem uint32
-		pad [32]uint32
-	}
-	b.RunParallel(func(pb *testing.PB) {
-		sem := new(PaddedSem)
-		for pb.Next() {
-			Runtime_Semrelease(&sem.sem)
-			Runtime_Semacquire(&sem.sem)
-		}
-	})
-}
-
-func benchmarkSema(b *testing.B, block, work bool) {
-	sem := uint32(0)
-	if block {
-		done := make(chan bool)
-		go func() {
-			for p := 0; p < runtime.GOMAXPROCS(0)/2; p++ {
-				Runtime_Semacquire(&sem)
-			}
-			done <- true
-		}()
-		defer func() {
-			<-done
-		}()
-	}
-	b.RunParallel(func(pb *testing.PB) {
-		foo := 0
-		for pb.Next() {
-			Runtime_Semrelease(&sem)
-			if work {
-				for i := 0; i < 100; i++ {
-					foo *= 2
-					foo /= 2
-				}
-			}
-			Runtime_Semacquire(&sem)
-		}
-		_ = foo
-		Runtime_Semrelease(&sem)
-	})
-}
-
-func BenchmarkSemaSyntNonblock(b *testing.B) {
-	benchmarkSema(b, false, false)
-}
-
-func BenchmarkSemaSyntBlock(b *testing.B) {
-	benchmarkSema(b, true, false)
-}
-
-func BenchmarkSemaWorkNonblock(b *testing.B) {
-	benchmarkSema(b, false, true)
-}
-
-func BenchmarkSemaWorkBlock(b *testing.B) {
-	benchmarkSema(b, true, true)
-}