diff --git a/Armv8.2-SM3和SM4.md b/Armv8.2-SM3和SM4.md
index 17a2894..f16a8de 100644
--- a/Armv8.2-SM3和SM4.md
+++ b/Armv8.2-SM3和SM4.md
@@ -1,3 +1,20 @@
+## SM3 arm64 plain asm on arm64-graviton2
+    goos: linux
+    goarch: arm64
+    pkg: github.com/emmansun/gmsm/sm3
+    BenchmarkHash8Bytes
+    BenchmarkHash8Bytes-2     	 2738724	       438.4 ns/op	  18.25 MB/s
+    BenchmarkHash1K
+    BenchmarkHash1K-2         	  192519	      6232 ns/op	 164.32 MB/s
+    BenchmarkHash8K
+    BenchmarkHash8K-2         	   24950	     48112 ns/op	 170.27 MB/s
+    BenchmarkHash8K_SH256
+    BenchmarkHash8K_SH256-2   	  223354	      5369 ns/op	1525.81 MB/s
+    PASS
+    ok  	github.com/emmansun/gmsm/sm3	5.857s
+
+和CPU指令级别的差距！
+
 找不到相关CPU环境，mark先。
 
 ## Reference