/
bench_test.go
223 lines (199 loc) · 4.55 KB
/
bench_test.go
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package sqlite4_varint_bench
import (
"testing"
"github.com/dchest/varuint"
"github.com/mohae/uvarint"
)
var tests = []struct {
decoded uint64
n int
encoded []byte
}{
{0, 1, []byte{0x00}},
{1, 1, []byte{0x01}},
{240, 1, []byte{0xF0}},
{241, 2, []byte{0xF1, 0x01}},
{2287, 2, []byte{0xF8, 0xFF}},
{2288, 3, []byte{0xF9, 0x00, 0x00}},
{67823, 3, []byte{0xF9, 0xFF, 0xFF}},
{67824, 4, []byte{0xFA, 0x01, 0x08, 0xF0}},
{1<<24 - 1, 4, []byte{0xFA, 0xFF, 0xFF, 0xFF}},
{1 << 24, 5, []byte{0xFB, 0x01, 0x00, 0x00, 0x00}},
{1<<32 - 1, 5, []byte{0xFB, 0xFF, 0xFF, 0xFF, 0xFF}},
{1 << 32, 6, []byte{0xFC, 0x01, 0x00, 0x00, 0x00, 0x00}},
{1<<40 - 1, 6, []byte{0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
{1 << 40, 7, []byte{0xFD, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}},
{1<<48 - 1, 7, []byte{0xFD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
{1 << 48, 8, []byte{0xFE, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
{1<<56 - 1, 8, []byte{0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
{1 << 56, 9, []byte{0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
{1<<64 - 1, 9, []byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
}
// Bench for all tests
func BenchmarkCockroachDBPutUvarintAll(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
n = putUvarint(buf, test.decoded)
}
}
_ = n
}
func BenchmarkCockroachDBUvarintAll(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
res, _ = getUvarint(test.encoded)
}
}
_ = res
}
func BenchmarkDchestPutUint64All(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
n = varuint.PutUint64(buf, test.decoded)
}
}
_ = n
}
func BenchmarkDchestUint64All(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
res, _ = varuint.Uint64(test.encoded)
}
}
_ = res
}
func BenchmarkMohaePutUvarintAll(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
n = uvarint.PutUvarint(buf, test.decoded)
}
}
_ = n
}
func BenchmarkMohaeUvarintAll(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
for _, test := range tests {
res, _ = uvarint.Uvarint(test.encoded)
}
}
_ = res
}
// Single encode: use < 241 (fastest)
func BenchmarkCockroachDBPutUvarintMinLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = putUvarint(buf, tests[2].decoded)
}
_ = n
}
func BenchmarkCockroachDBUvarintMinLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = getUvarint(tests[2].encoded)
}
_ = res
}
func BenchmarkDchestPutUint64MinLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = varuint.PutUint64(buf, tests[2].decoded)
}
_ = n
}
func BenchmarkDchestUint64MinLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = varuint.Uint64(tests[2].encoded)
}
_ = res
}
func BenchmarkMohaePutUvarintMinLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = uvarint.PutUvarint(buf, tests[2].decoded)
}
_ = n
}
func BenchmarkMohaeUvarintMinLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = uvarint.Uvarint(tests[2].encoded)
}
_ = res
}
// Single encode: use > 1<<56 (slowest)
func BenchmarkCockroachDBPutUvarintMaxLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = putUvarint(buf, tests[17].decoded)
}
_ = n
}
func BenchmarkCockroachDBUvarintMaxLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = getUvarint(tests[17].encoded)
}
_ = res
}
func BenchmarkDchestPutUint64MaxLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = varuint.PutUint64(buf, tests[17].decoded)
}
_ = n
}
func BenchmarkDchestUint64MaxLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = varuint.Uint64(tests[17].encoded)
}
_ = res
}
func BenchmarkMohaePutUvarintMaxLen(b *testing.B) {
buf := make([]byte, 9)
var n int
b.SetBytes(8)
for i := 0; i < b.N; i++ {
n = uvarint.PutUvarint(buf, tests[17].decoded)
}
_ = n
}
func BenchmarkMohaeUvarintMaxLen(b *testing.B) {
var res uint64
b.SetBytes(8)
for i := 0; i < b.N; i++ {
res, _ = uvarint.Uvarint(tests[17].encoded)
}
_ = res
}