diff --git a/src/test/java/cmbpoc/PerformanceTest.java b/src/test/java/cmbpoc/PerformanceTest.java
new file mode 100644
index 0000000..435beb4
--- /dev/null
+++ b/src/test/java/cmbpoc/PerformanceTest.java
@@ -0,0 +1,139 @@
+package cmbpoc;
+
+import com.sunyard.RetWrap;
+import com.sunyard.SydApi;
+import com.sunyard.proto.Util;
+import org.junit.*;
+import racal.sunyard.main.SydApi4j;
+
+public class PerformanceTest {
+
+    private SydApi4j api;
+    private byte[] privateKey4Ende;
+    private byte[] publicKey4Ende;
+    private byte[] orgData2K = new byte[2 * 1024];
+    private byte[] orgData2M = new byte[2 * 1024 * 1024];
+    private byte[] orgData10M = new byte[10 * 1024 * 1024];
+    private static final int TEST_ROUNDS = 10;
+
+    @Before
+    public void start() {
+        System.setProperty("com.sunyard.sydapi4j.debug", "false");
+        this.api = (SydApi4j) new SydApi4j().connect("192.168.100.145", 8889, null, 30000);
+        this.publicKey4Ende = Util.hexString2Bytes("03420004AF3D4E55D26564C6C937E6EA9232691C01AC5E7916AD2136F788CE7C1E4D0AE8C4754DEC2F7F6A78962D51A171A6F5B4F11823390AEC8B5B0246CD2CCF8052B7");
+        this.privateKey4Ende = Util.hexString2Bytes("00010000963F7C3A98B7810F52D2861A060E18A9D4D59796CF33967DD61EEDA091E1AD9B0000000000000000000000000000000000000000000000000000000000000000");
+    }
+
+    @After
+    public void stop() {
+        if (null != api) {
+            this.api.disconnect();
+            this.api = null;
+        }
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_2K() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 2K Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2K);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData2K, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (2.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (2.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 2KB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_2M() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 2M Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData2M);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData2M, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (2048.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (2048.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 2MB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+
+    @Test
+    public void SYD_SM2_Encrypt_Performance_10M() {
+        System.out.println("=== SYD_SM2_Encrypt Performance Test - 10M Data ===");
+        long totalEncryptTime = 0;
+        long totalDecryptTime = 0;
+
+        for (int i = 0; i < TEST_ROUNDS; i++) {
+            long encryptStart = System.currentTimeMillis();
+            byte[] enData = this.api.SYD_SM2Encrypt(publicKey4Ende, orgData10M);
+            long encryptEnd = System.currentTimeMillis();
+
+            long decryptStart = System.currentTimeMillis();
+            byte[] deData = this.api.SYD_SM2Decrypt(privateKey4Ende, enData);
+            long decryptEnd = System.currentTimeMillis();
+
+            totalEncryptTime += (encryptEnd - encryptStart);
+            totalDecryptTime += (decryptEnd - decryptStart);
+
+            Assert.assertArrayEquals(orgData10M, deData);
+        }
+
+        double avgEncryptTime = (double) totalEncryptTime / TEST_ROUNDS;
+        double avgDecryptTime = (double) totalDecryptTime / TEST_ROUNDS;
+        double encryptThroughput = (10240.0 / avgEncryptTime) * 1000;
+        double decryptThroughput = (10240.0 / avgDecryptTime) * 1000;
+
+        System.out.println("Test Rounds: " + TEST_ROUNDS);
+        System.out.println("Data Size: 10MB");
+        System.out.printf("Average Encrypt Time: %.2f ms%n", avgEncryptTime);
+        System.out.printf("Average Decrypt Time: %.2f ms%n", avgDecryptTime);
+        System.out.printf("Encrypt Throughput: %.2f KB/s%n", encryptThroughput);
+        System.out.printf("Decrypt Throughput: %.2f KB/s%n", decryptThroughput);
+        System.out.println();
+    }
+}