gomem/reader_bench_test.go at main · langhuihui/gomem · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
package gomem

import (
	"testing"
)

// BenchmarkMemoryReaderRead benchmarks reading from memory reader
func BenchmarkMemoryReaderRead(b *testing.B) {
	// Create test data
	buf1 := make([]byte, 1024)
	buf2 := make([]byte, 1024)
	buf3 := make([]byte, 1024)

	reader := NewReadableBuffersFromBytes(buf1, buf2, buf3)
	readBuf := make([]byte, 1024)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf1, buf2, buf3)
		for reader.Length > 0 {
			n, _ := reader.Read(readBuf)
			if n == 0 {
				break
			}
		}
	}
}

// BenchmarkMemoryReaderReadByte benchmarks reading single bytes
func BenchmarkMemoryReaderReadByte(b *testing.B) {
	// Create test data
	buf := make([]byte, 1024)
	reader := NewReadableBuffersFromBytes(buf)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf)
		for reader.Length > 0 {
			_, err := reader.ReadByte()
			if err != nil {
				break
			}
		}
	}
}

// BenchmarkMemoryReaderReadBytes benchmarks reading fixed-size bytes
func BenchmarkMemoryReaderReadBytes(b *testing.B) {
	// Create test data
	buf := make([]byte, 1024)
	reader := NewReadableBuffersFromBytes(buf)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf)
		for reader.Length > 0 {
			_, err := reader.ReadBytes(64)
			if err != nil {
				break
			}
		}
	}
}

// BenchmarkMemoryReaderReadBE benchmarks reading big-endian integers
func BenchmarkMemoryReaderReadBE(b *testing.B) {
	// Create test data
	buf := make([]byte, 1024)
	reader := NewReadableBuffersFromBytes(buf)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf)
		for reader.Length >= 4 {
			_, err := reader.ReadBE(4)
			if err != nil {
				break
			}
		}
	}
}

// BenchmarkMemoryReaderSkip benchmarks skipping bytes
func BenchmarkMemoryReaderSkip(b *testing.B) {
	// Create test data
	buf := make([]byte, 1024)
	reader := NewReadableBuffersFromBytes(buf)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf)
		for reader.Length > 0 {
			err := reader.Skip(64)
			if err != nil {
				break
			}
		}
	}
}

// BenchmarkMemoryReaderRange benchmarks iterating over buffers
func BenchmarkMemoryReaderRange(b *testing.B) {
	// Create test data
	buf1 := make([]byte, 512)
	buf2 := make([]byte, 512)
	reader := NewReadableBuffersFromBytes(buf1, buf2)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf1, buf2)
		reader.Range(func(buf []byte) {
			_ = len(buf)
		})
	}
}

// BenchmarkMemoryReaderRangeN benchmarks iterating over N buffers
func BenchmarkMemoryReaderRangeN(b *testing.B) {
	// Create test data
	buf1 := make([]byte, 512)
	buf2 := make([]byte, 512)
	reader := NewReadableBuffersFromBytes(buf1, buf2)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf1, buf2)
		reader.RangeN(2, func(buf []byte) {
			_ = len(buf)
		})
	}
}

// BenchmarkMemoryReaderLEB128Unmarshal benchmarks LEB128 unmarshaling
func BenchmarkMemoryReaderLEB128Unmarshal(b *testing.B) {
	// Create test data with LEB128 encoded numbers
	buf := make([]byte, 1024)
	// Fill with some LEB128 encoded data
	for i := 0; i < len(buf); i++ {
		buf[i] = byte(i % 128)
	}

	reader := NewReadableBuffersFromBytes(buf)

	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		reader = NewReadableBuffersFromBytes(buf)
		for reader.Length > 0 {
			_, _, err := reader.LEB128Unmarshal()
			if err != nil {
				break
			}
		}
	}
}