Add system stack

internal/clashtcpip/tcpip_compat_test.go

@@ -0,0 +1,26 @@
+package clashtcpip
+
+import (
+	"crypto/rand"
+	"testing"
+)
+
+const (
+	chunkSize  = 9000
+	chunkCount = 10
+)
+
+func Benchmark_SumCompat(b *testing.B) {
+	bytes := make([]byte, chunkSize)
+
+	_, err := rand.Reader.Read(bytes)
+	if err != nil {
+		b.Skipf("Rand read failed: %v", err)
+	}
+
+	b.ResetTimer()
+
+	for i := 0; i < b.N; i++ {
+		SumCompat(bytes)
+	}
+}