From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgo/go/container/vector/numbers_test.go | 122 ++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 libgo/go/container/vector/numbers_test.go (limited to 'libgo/go/container/vector/numbers_test.go') diff --git a/libgo/go/container/vector/numbers_test.go b/libgo/go/container/vector/numbers_test.go new file mode 100644 index 000000000..d540ace05 --- /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) + } +} -- cgit v1.2.3