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quicvarint: extend benchmark to use quicvarint.Reader (#5278)

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* quicvarint: extend benchmark to use quicvarint.Reader

* rename variable
This commit is contained in:
Marten Seemann
2025-08-05 07:49:55 +02:00
committed by GitHub
parent 5422e4c68c
commit fa8ca045dd
1 changed files with 28 additions and 7 deletions
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35
quicvarint/varint_test.go
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@@ -224,20 +224,41 @@ func randomValues(num int, maxValue uint64) []benchmarkValue {
return bv
}
func BenchmarkRead(b *testing.B) {
b.Run("1-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt1)) })
b.Run("2-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt2)) })
b.Run("4-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt4)) })
b.Run("8-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt8)) })
// using a reader that is also an io.ByteReader
func BenchmarkReadBytesReader(b *testing.B) {
b.Run("1-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt1), false) })
b.Run("2-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt2), false) })
b.Run("4-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt4), false) })
b.Run("8-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt8), false) })
}
func benchmarkRead(b *testing.B, inputs []benchmarkValue) {
// using a reader that is not an io.ByteReader
func BenchmarkReadSimpleReader(b *testing.B) {
b.Run("1-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt1), true) })
b.Run("2-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt2), true) })
b.Run("4-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt4), true) })
b.Run("8-byte", func(b *testing.B) { benchmarkRead(b, randomValues(min(b.N, 1024), maxVarInt8), true) })
}
// simpleReader satisfies io.Reader, but not io.ByteReader
// This means that NewReader will need to wrap the reader.
type simpleReader struct {
io.Reader
}
func benchmarkRead(b *testing.B, inputs []benchmarkValue, wrapBytesReader bool) {
r := bytes.NewReader([]byte{})
var vr Reader
if wrapBytesReader {
vr = NewReader(&simpleReader{r})
} else {
vr = NewReader(r)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
index := i % len(inputs)
r.Reset(inputs[index].b)
val, err := Read(r)
val, err := Read(vr)
if err != nil {
b.Fatal(err)
}