diff --git a/SM4性能优化.md b/SM4性能优化.md
index 3b27e16..972eb44 100644
--- a/SM4性能优化.md
+++ b/SM4性能优化.md
@@ -121,6 +121,17 @@ XTS模式主要用于磁盘加密，不过基本没有用sm4直接作为磁盘
 * [The XTS-AES Tweakable Block Cipher](https://luca-giuzzi.unibs.it/corsi/Support/papers-cryptography/1619-2007-NIST-Submission.pdf)
 * [AES-XTS Block Cipher Mode is used in Kingston's Encrypted USB Flash Drives](https://www.kingston.com/unitedstates/en/solutions/data-security/xts-encryption)
 
+    CPU: i5-8265U
+    goos: windows
+    goarch: amd64
+    pkg: github.com/emmansun/gmsm/sm4_test
+    BenchmarkAES128XTS512-6      	  414715	      2856 ns/op	 179.30 MB/s	       0 B/op	       0 allocs/op
+    BenchmarkAES128XTS1K-6       	  214734	      5608 ns/op	 182.58 MB/s	       0 B/op	       0 allocs/op
+    BenchmarkAES128XTS4K-6       	   54001	     22179 ns/op	 184.68 MB/s	       0 B/op	       0 allocs/op
+    BenchmarkAES256XTS512-6      	  387740	      3073 ns/op	 166.63 MB/s	       0 B/op	       0 allocs/op
+    BenchmarkAES256XTS1K-6       	  197138	      6100 ns/op	 167.86 MB/s	       0 B/op	       0 allocs/op
+    BenchmarkAES256XTS4K-6       	   49514	     24088 ns/op	 170.04 MB/s	       0 B/op	       0 allocs/op
+
 # 和AES的比较
 相比而言，差距还是有点大，最大的是GCM sign/open, 有二十多倍。