OP#792 initial commit after fork

internal/ringbuffer/ring_buffer_benchmark_test.go

@@ -0,0 +1,105 @@
+package ringbuffer
+
+import (
+	"io"
+	"strings"
+	"testing"
+)
+
+func BenchmarkRingBuffer_Sync(b *testing.B) {
+	rb := New(1024)
+	data := []byte(strings.Repeat("a", 512))
+	buf := make([]byte, 512)
+
+	for b.Loop() {
+		rb.Write(data)
+		rb.Read(buf)
+	}
+}
+
+func BenchmarkRingBuffer_AsyncRead(b *testing.B) {
+	// Pretty useless benchmark, but it's here for completeness.
+	rb := New(1024)
+	data := []byte(strings.Repeat("a", 512))
+	buf := make([]byte, 512)
+
+	go func() {
+		for {
+			rb.Read(buf)
+		}
+	}()
+
+	for b.Loop() {
+		rb.Write(data)
+	}
+}
+
+func BenchmarkRingBuffer_AsyncReadBlocking(b *testing.B) {
+	const sz = 512
+	const buffers = 10
+	rb := New(sz * buffers)
+	rb.SetBlocking(true)
+	data := []byte(strings.Repeat("a", sz))
+	buf := make([]byte, sz)
+
+	go func() {
+		for {
+			rb.Read(buf)
+		}
+	}()
+
+	for b.Loop() {
+		rb.Write(data)
+	}
+}
+
+func BenchmarkRingBuffer_AsyncWrite(b *testing.B) {
+	rb := New(1024)
+	data := []byte(strings.Repeat("a", 512))
+	buf := make([]byte, 512)
+
+	go func() {
+		for {
+			rb.Write(data)
+		}
+	}()
+
+	for b.Loop() {
+		rb.Read(buf)
+	}
+}
+
+func BenchmarkRingBuffer_AsyncWriteBlocking(b *testing.B) {
+	const sz = 512
+	const buffers = 10
+	rb := New(sz * buffers)
+	rb.SetBlocking(true)
+	data := []byte(strings.Repeat("a", sz))
+	buf := make([]byte, sz)
+
+	go func() {
+		for {
+			rb.Write(data)
+		}
+	}()
+
+	for b.Loop() {
+		rb.Read(buf)
+	}
+}
+
+func BenchmarkIoPipeReader(b *testing.B) {
+	pr, pw := io.Pipe()
+	data := []byte(strings.Repeat("a", 512))
+	buf := make([]byte, 512)
+
+	go func() {
+		for {
+			pw.Write(data)
+		}
+	}()
+
+	for b.Loop() {
+		pr.Read(buf)
+	}
+}