1 files changed, 122 insertions, 0 deletions
diff --git a/libgo/go/container/vector/numbers_test.go b/libgo/go/container/vector/numbers_test.go
new file mode 100644
index 0000000000..d540ace050
--- /dev/null
+++ b/libgo/go/container/vector/numbers_test.go
@@ -0,0 +1,122 @@
+// 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 vector
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+
+const memTestN = 1000000
+
+
+func s(n uint64) string {
+	str := fmt.Sprintf("%d", n)
+	lens := len(str)
+	a := make([]string, (lens+2)/3)
+	start := lens
+	for i := range a {
+		start -= 3
+		if start < 0 {
+			start = 0
+		}
+		a[len(a)-i-1] = str[start:lens]
+		lens -= 3
+	}
+	return strings.Join(a, " ")
+}
+
+
+func TestVectorNums(t *testing.T) {
+	var v Vector
+	c := int(0)
+	runtime.GC()
+	m0 := runtime.MemStats
+	v.Resize(memTestN, memTestN)
+	for i := 0; i < memTestN; i++ {
+		v.Set(i, c)
+	}
+	runtime.GC()
+	m := runtime.MemStats
+	v.Resize(0, 0)
+	runtime.GC()
+	n := m.Alloc - m0.Alloc
+	t.Logf("%T.Push(%#v), n = %s: Alloc/n = %.2f\n", v, c, s(memTestN), float64(n)/memTestN)
+}
+
+
+func TestIntVectorNums(t *testing.T) {
+	var v IntVector
+	c := int(0)
+	runtime.GC()
+	m0 := runtime.MemStats
+	v.Resize(memTestN, memTestN)
+	for i := 0; i < memTestN; i++ {
+		v.Set(i, c)
+	}
+	runtime.GC()
+	m := runtime.MemStats
+	v.Resize(0, 0)
+	runtime.GC()
+	n := m.Alloc - m0.Alloc
+	t.Logf("%T.Push(%#v), n = %s: Alloc/n = %.2f\n", v, c, s(memTestN), float64(n)/memTestN)
+}
+
+
+func TestStringVectorNums(t *testing.T) {
+	var v StringVector
+	c := ""
+	runtime.GC()
+	m0 := runtime.MemStats
+	v.Resize(memTestN, memTestN)
+	for i := 0; i < memTestN; i++ {
+		v.Set(i, c)
+	}
+	runtime.GC()
+	m := runtime.MemStats
+	v.Resize(0, 0)
+	runtime.GC()
+	n := m.Alloc - m0.Alloc
+	t.Logf("%T.Push(%#v), n = %s: Alloc/n = %.2f\n", v, c, s(memTestN), float64(n)/memTestN)
+}
+
+
+func BenchmarkVectorNums(b *testing.B) {
+	c := int(0)
+	var v Vector
+	b.StopTimer()
+	runtime.GC()
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		v.Push(c)
+	}
+}
+
+
+func BenchmarkIntVectorNums(b *testing.B) {
+	c := int(0)
+	var v IntVector
+	b.StopTimer()
+	runtime.GC()
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		v.Push(c)
+	}
+}
+
+
+func BenchmarkStringVectorNums(b *testing.B) {
+	c := ""
+	var v StringVector
+	b.StopTimer()
+	runtime.GC()
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		v.Push(c)
+	}
+}