perf: improve gzip performance with sync.pool (#1321)

Signed-off-by: rfyiamcool <rfyiamcool@163.com>
Co-authored-by: Gordon <46924906+FGadvancer@users.noreply.github.com>

internal/msggateway/compressor_test.go

@@ -0,0 +1,107 @@
+package msggateway
+
+import (
+	"crypto/rand"
+	"sync"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func mockRandom() []byte {
+	bs := make([]byte, 50)
+	rand.Read(bs)
+	return bs
+}
+
+func TestCompressDecompress(t *testing.T) {
+
+	compressor := NewGzipCompressor()
+
+	for i := 0; i < 2000; i++ {
+		src := mockRandom()
+
+		// compress
+		dest, err := compressor.CompressWithPool(src)
+		assert.Equal(t, nil, err)
+
+		// decompress
+		res, err := compressor.DecompressWithPool(dest)
+		assert.Equal(t, nil, err)
+
+		// check
+		assert.EqualValues(t, src, res)
+	}
+}
+
+func TestCompressDecompressWithConcurrency(t *testing.T) {
+	wg := sync.WaitGroup{}
+	compressor := NewGzipCompressor()
+
+	for i := 0; i < 200; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			src := mockRandom()
+
+			// compress
+			dest, err := compressor.CompressWithPool(src)
+			assert.Equal(t, nil, err)
+
+			// decompress
+			res, err := compressor.DecompressWithPool(dest)
+			assert.Equal(t, nil, err)
+
+			// check
+			assert.EqualValues(t, src, res)
+
+		}()
+	}
+	wg.Wait()
+}
+
+func BenchmarkCompress(b *testing.B) {
+	src := mockRandom()
+	compressor := NewGzipCompressor()
+
+	for i := 0; i < b.N; i++ {
+		_, err := compressor.Compress(src)
+		assert.Equal(b, nil, err)
+	}
+}
+
+func BenchmarkCompressWithSyncPool(b *testing.B) {
+	src := mockRandom()
+
+	compressor := NewGzipCompressor()
+	for i := 0; i < b.N; i++ {
+		_, err := compressor.CompressWithPool(src)
+		assert.Equal(b, nil, err)
+	}
+}
+
+func BenchmarkDecompress(b *testing.B) {
+	src := mockRandom()
+
+	compressor := NewGzipCompressor()
+	comdata, err := compressor.Compress(src)
+	assert.Equal(b, nil, err)
+
+	for i := 0; i < b.N; i++ {
+		_, err := compressor.DeCompress(comdata)
+		assert.Equal(b, nil, err)
+	}
+}
+
+func BenchmarkDecompressWithSyncPool(b *testing.B) {
+	src := mockRandom()
+
+	compressor := NewGzipCompressor()
+	comdata, err := compressor.Compress(src)
+	assert.Equal(b, nil, err)
+
+	for i := 0; i < b.N; i++ {
+		_, err := compressor.DecompressWithPool(comdata)
+		assert.Equal(b, nil, err)
+	}
+}