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7c1d6e35a5
Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
131 lines
2.7 KiB
Go
131 lines
2.7 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package smallzstd
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import (
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"os"
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"testing"
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"github.com/klauspost/compress/zstd"
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)
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func BenchmarkSmallEncoder(b *testing.B) {
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benchEncoder(b, func() (*zstd.Encoder, error) { return NewEncoder(nil) })
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}
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func BenchmarkSmallEncoderWithBuild(b *testing.B) {
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benchEncoderWithConstruction(b, func() (*zstd.Encoder, error) { return NewEncoder(nil) })
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}
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func BenchmarkStockEncoder(b *testing.B) {
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benchEncoder(b, func() (*zstd.Encoder, error) { return zstd.NewWriter(nil) })
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}
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func BenchmarkStockEncoderWithBuild(b *testing.B) {
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benchEncoderWithConstruction(b, func() (*zstd.Encoder, error) { return zstd.NewWriter(nil) })
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}
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func BenchmarkSmallDecoder(b *testing.B) {
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benchDecoder(b, func() (*zstd.Decoder, error) { return NewDecoder(nil) })
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}
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func BenchmarkSmallDecoderWithBuild(b *testing.B) {
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benchDecoderWithConstruction(b, func() (*zstd.Decoder, error) { return NewDecoder(nil) })
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}
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func BenchmarkStockDecoder(b *testing.B) {
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benchDecoder(b, func() (*zstd.Decoder, error) { return zstd.NewReader(nil) })
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}
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func BenchmarkStockDecoderWithBuild(b *testing.B) {
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benchDecoderWithConstruction(b, func() (*zstd.Decoder, error) { return zstd.NewReader(nil) })
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}
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func benchEncoder(b *testing.B, mk func() (*zstd.Encoder, error)) {
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b.ReportAllocs()
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in := testdata(b)
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out := make([]byte, 0, 10<<10) // 10kiB
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e, err := mk()
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if err != nil {
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b.Fatalf("making encoder: %v", err)
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}
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b.ResetTimer()
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for range b.N {
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e.EncodeAll(in, out)
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}
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}
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func benchEncoderWithConstruction(b *testing.B, mk func() (*zstd.Encoder, error)) {
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b.ReportAllocs()
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in := testdata(b)
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out := make([]byte, 0, 10<<10) // 10kiB
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b.ResetTimer()
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for range b.N {
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e, err := mk()
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if err != nil {
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b.Fatalf("making encoder: %v", err)
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}
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e.EncodeAll(in, out)
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}
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}
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func benchDecoder(b *testing.B, mk func() (*zstd.Decoder, error)) {
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b.ReportAllocs()
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in := compressedTestdata(b)
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out := make([]byte, 0, 10<<10)
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d, err := mk()
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if err != nil {
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b.Fatalf("creating decoder: %v", err)
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}
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b.ResetTimer()
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for range b.N {
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d.DecodeAll(in, out)
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}
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}
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func benchDecoderWithConstruction(b *testing.B, mk func() (*zstd.Decoder, error)) {
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b.ReportAllocs()
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in := compressedTestdata(b)
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out := make([]byte, 0, 10<<10)
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b.ResetTimer()
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for range b.N {
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d, err := mk()
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if err != nil {
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b.Fatalf("creating decoder: %v", err)
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}
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d.DecodeAll(in, out)
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}
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}
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func testdata(b *testing.B) []byte {
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b.Helper()
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in, err := os.ReadFile("testdata")
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if err != nil {
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b.Fatalf("reading testdata: %v", err)
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}
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return in
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}
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func compressedTestdata(b *testing.B) []byte {
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b.Helper()
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uncomp := testdata(b)
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e, err := NewEncoder(nil)
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if err != nil {
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b.Fatalf("creating encoder: %v", err)
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}
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return e.EncodeAll(uncomp, nil)
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}
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