44 lines
780 B
Go
44 lines
780 B
Go
package main
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import "testing"
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// go test -bench=. -benchmem
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const bufferSize = 10
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type ReaderWithSliceArgument struct{}
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func (r ReaderWithSliceArgument) Read(p []byte) (int, error) {
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for i := 0; i < bufferSize; i++ {
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p[i] = byte(i)
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}
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return bufferSize, nil
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}
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type ReaderWithSliceReturn struct{}
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func (r ReaderWithSliceReturn) Read(n int) ([]byte, error) {
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p := make([]byte, n)
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for i := 0; i < n; i++ {
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p[i] = byte(i)
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}
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return p, nil
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}
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func BenchmarkSliceWithArgument(b *testing.B) {
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for i := 0; i < b.N; i++ {
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p := make([]byte, bufferSize)
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reader := ReaderWithSliceArgument{}
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_, _ = reader.Read(p)
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}
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}
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func BenchmarkSliceWithReturn(b *testing.B) {
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for i := 0; i < b.N; i++ {
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reader := ReaderWithSliceReturn{}
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_, _ = reader.Read(bufferSize)
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}
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}
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