mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
ffd0d02d09
The testdata/e.txt input is repeated on the longer benchmarks, but the length of that data is less than flate's window size, so the numbers are essentially measuring the performance of a trivial compression. A follow-up CL will add more data to testdata/e.txt. Sample output on my laptop (linux, amd64): BenchmarkDecodeDigitsSpeed1e4 5000 603153 ns/op 16.58 MB/s BenchmarkDecodeDigitsSpeed1e5 1000 1465602 ns/op 68.23 MB/s BenchmarkDecodeDigitsSpeed1e6 200 8036050 ns/op 124.44 MB/s BenchmarkDecodeDigitsDefault1e4 5000 581796 ns/op 17.19 MB/s BenchmarkDecodeDigitsDefault1e5 2000 846653 ns/op 118.11 MB/s BenchmarkDecodeDigitsDefault1e6 500 3385782 ns/op 295.35 MB/s BenchmarkDecodeDigitsCompress1e4 5000 581180 ns/op 17.21 MB/s BenchmarkDecodeDigitsCompress1e5 2000 846209 ns/op 118.17 MB/s BenchmarkDecodeDigitsCompress1e6 500 3386174 ns/op 295.32 MB/s BenchmarkDecodeTwainSpeed1e4 5000 643563 ns/op 15.54 MB/s BenchmarkDecodeTwainSpeed1e5 500 5418408 ns/op 18.46 MB/s BenchmarkDecodeTwainSpeed1e6 50 52277520 ns/op 19.13 MB/s BenchmarkDecodeTwainDefault1e4 5000 583551 ns/op 17.14 MB/s BenchmarkDecodeTwainDefault1e5 500 4443428 ns/op 22.51 MB/s BenchmarkDecodeTwainDefault1e6 50 41862080 ns/op 23.89 MB/s BenchmarkDecodeTwainCompress1e4 5000 583490 ns/op 17.14 MB/s BenchmarkDecodeTwainCompress1e5 500 4426356 ns/op 22.59 MB/s BenchmarkDecodeTwainCompress1e6 50 41657940 ns/op 24.01 MB/s BenchmarkEncodeDigitsSpeed1e4 2000 1230907 ns/op 8.12 MB/s BenchmarkEncodeDigitsSpeed1e5 1000 2319129 ns/op 43.12 MB/s BenchmarkEncodeDigitsSpeed1e6 100 12378950 ns/op 80.78 MB/s BenchmarkEncodeDigitsDefault1e4 1000 1597865 ns/op 6.26 MB/s BenchmarkEncodeDigitsDefault1e5 500 3163458 ns/op 31.61 MB/s BenchmarkEncodeDigitsDefault1e6 100 18770240 ns/op 53.28 MB/s BenchmarkEncodeDigitsCompress1e4 1000 1603461 ns/op 6.24 MB/s BenchmarkEncodeDigitsCompress1e5 500 3168766 ns/op 31.56 MB/s BenchmarkEncodeDigitsCompress1e6 100 18855830 ns/op 53.03 MB/s BenchmarkEncodeTwainSpeed1e4 1000 1338049 ns/op 7.47 MB/s BenchmarkEncodeTwainSpeed1e5 500 7341622 ns/op 13.62 MB/s BenchmarkEncodeTwainSpeed1e6 50 67484600 ns/op 14.82 MB/s BenchmarkEncodeTwainDefault1e4 1000 1778399 ns/op 5.62 MB/s BenchmarkEncodeTwainDefault1e5 100 23261810 ns/op 4.30 MB/s BenchmarkEncodeTwainDefault1e6 10 243533600 ns/op 4.11 MB/s BenchmarkEncodeTwainCompress1e4 1000 1795469 ns/op 5.57 MB/s BenchmarkEncodeTwainCompress1e5 50 29447140 ns/op 3.40 MB/s BenchmarkEncodeTwainCompress1e6 5 321686800 ns/op 3.11 MB/s ok compress/flate 89.246s R=rsc, r CC=golang-dev https://golang.org/cl/6195055
60 lines
2.5 KiB
Go
60 lines
2.5 KiB
Go
// Copyright 2012 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 flate
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"runtime"
|
|
"testing"
|
|
)
|
|
|
|
func benchmarkEncoder(b *testing.B, testfile, level, n int) {
|
|
b.StopTimer()
|
|
b.SetBytes(int64(n))
|
|
buf0, err := ioutil.ReadFile(testfiles[testfile])
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
if len(buf0) == 0 {
|
|
b.Fatalf("test file %q has no data", testfiles[testfile])
|
|
}
|
|
buf1 := make([]byte, n)
|
|
for i := 0; i < n; i += len(buf0) {
|
|
if len(buf0) > n-i {
|
|
buf0 = buf0[:n-i]
|
|
}
|
|
copy(buf1[i:], buf0)
|
|
}
|
|
buf0 = nil
|
|
runtime.GC()
|
|
b.StartTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
w, err := NewWriter(ioutil.Discard, level)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
w.Write(buf1)
|
|
w.Close()
|
|
}
|
|
}
|
|
|
|
func BenchmarkEncodeDigitsSpeed1e4(b *testing.B) { benchmarkEncoder(b, digits, speed, 1e4) }
|
|
func BenchmarkEncodeDigitsSpeed1e5(b *testing.B) { benchmarkEncoder(b, digits, speed, 1e5) }
|
|
func BenchmarkEncodeDigitsSpeed1e6(b *testing.B) { benchmarkEncoder(b, digits, speed, 1e6) }
|
|
func BenchmarkEncodeDigitsDefault1e4(b *testing.B) { benchmarkEncoder(b, digits, default_, 1e4) }
|
|
func BenchmarkEncodeDigitsDefault1e5(b *testing.B) { benchmarkEncoder(b, digits, default_, 1e5) }
|
|
func BenchmarkEncodeDigitsDefault1e6(b *testing.B) { benchmarkEncoder(b, digits, default_, 1e6) }
|
|
func BenchmarkEncodeDigitsCompress1e4(b *testing.B) { benchmarkEncoder(b, digits, compress, 1e4) }
|
|
func BenchmarkEncodeDigitsCompress1e5(b *testing.B) { benchmarkEncoder(b, digits, compress, 1e5) }
|
|
func BenchmarkEncodeDigitsCompress1e6(b *testing.B) { benchmarkEncoder(b, digits, compress, 1e6) }
|
|
func BenchmarkEncodeTwainSpeed1e4(b *testing.B) { benchmarkEncoder(b, twain, speed, 1e4) }
|
|
func BenchmarkEncodeTwainSpeed1e5(b *testing.B) { benchmarkEncoder(b, twain, speed, 1e5) }
|
|
func BenchmarkEncodeTwainSpeed1e6(b *testing.B) { benchmarkEncoder(b, twain, speed, 1e6) }
|
|
func BenchmarkEncodeTwainDefault1e4(b *testing.B) { benchmarkEncoder(b, twain, default_, 1e4) }
|
|
func BenchmarkEncodeTwainDefault1e5(b *testing.B) { benchmarkEncoder(b, twain, default_, 1e5) }
|
|
func BenchmarkEncodeTwainDefault1e6(b *testing.B) { benchmarkEncoder(b, twain, default_, 1e6) }
|
|
func BenchmarkEncodeTwainCompress1e4(b *testing.B) { benchmarkEncoder(b, twain, compress, 1e4) }
|
|
func BenchmarkEncodeTwainCompress1e5(b *testing.B) { benchmarkEncoder(b, twain, compress, 1e5) }
|
|
func BenchmarkEncodeTwainCompress1e6(b *testing.B) { benchmarkEncoder(b, twain, compress, 1e6) }
|