diff --git a/demos/asr_deployment/README.md b/demos/asr_deployment/README.md
index 24489cbaa..2fba264e6 100644
--- a/demos/asr_deployment/README.md
+++ b/demos/asr_deployment/README.md
@@ -66,6 +66,7 @@ Please see [here](../../speechx/README.md).
 
 > CER compute under aishell-test.
 > RTF compute with feature and decoder, which is more end to end.
+> Machine Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz avx512_vnni
 
 ### FP32
 
@@ -76,11 +77,19 @@ English -> 0.00 % N=0 C=0 S=0 D=0 I=0
 Other -> 100.00 % N=3 C=0 S=3 D=0 I=0
 ```
 
+```
+RTF is: 0.315337
+```
+
 ### INT8
 
 ```
-Overall -> 5.87 % N=104765 C=98909 S=5711 D=145 I=289
-Mandarin -> 5.86 % N=104762 C=98909 S=5708 D=145 I=289
+Overall -> 5.83 % N=104765 C=98943 S=5675 D=147 I=286
+Mandarin -> 5.83 % N=104762 C=98943 S=5672 D=147 I=286
 English -> 0.00 % N=0 C=0 S=0 D=0 I=0
 Other -> 100.00 % N=3 C=0 S=3 D=0 I=0
 ```
+
+```
+RTF is: 0.269674
+```
\ No newline at end of file
diff --git a/demos/asr_deployment/README_cn.md b/demos/asr_deployment/README_cn.md
index 78246fe2d..7e7adf1d7 100644
--- a/demos/asr_deployment/README_cn.md
+++ b/demos/asr_deployment/README_cn.md
@@ -66,6 +66,7 @@
 
 > CER 测试集为 aishell-test
 > RTF 计算包含提特征和解码
+> 测试机器： Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz avx512_vnni
 
 ### FP32
 
@@ -76,6 +77,10 @@ English -> 0.00 % N=0 C=0 S=0 D=0 I=0
 Other -> 100.00 % N=3 C=0 S=3 D=0 I=0
 ```
 
+```
+RTF is: 0.315337
+```
+
 ### INT8
 
 ```
diff --git a/speechx/examples/codelab/u2/utils b/speechx/examples/codelab/u2/utils
new file mode 120000
index 000000000..23cef9612
--- /dev/null
+++ b/speechx/examples/codelab/u2/utils
@@ -0,0 +1 @@
+../../../../utils
\ No newline at end of file
diff --git a/speechx/examples/u2pp_ol/wenetspeech/RESULTS.md b/speechx/examples/u2pp_ol/wenetspeech/RESULTS.md
index 2ad985ccc..1bc5b8e80 100644
--- a/speechx/examples/u2pp_ol/wenetspeech/RESULTS.md
+++ b/speechx/examples/u2pp_ol/wenetspeech/RESULTS.md
@@ -4,6 +4,8 @@
 
 ## U2++ Attention Rescore
 
+> Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz, support `avx512_vnni`
+> RTF with feature and decoder which is more end to end.
 ### FP32
 
 #### CER
@@ -17,10 +19,6 @@ Other -> 100.00 % N=3 C=0 S=3 D=0 I=0
 
 #### RTF 
 
-> RTF with feature and decoder which is more end to end.
-
-* Intel(R) Xeon(R) Gold 6271C CPU @ 2.60GHz, support `avx512_vnni`
-
 ```
 I1027 10:52:38.662868 51665 u2_recognizer_main.cc:122] total wav duration is: 36108.9 sec
 I1027 10:52:38.662858 51665 u2_recognizer_main.cc:121] total cost:11169.1 sec
@@ -29,11 +27,21 @@ I1027 10:52:38.662876 51665 u2_recognizer_main.cc:123] RTF is: 0.309318
 
 ### INT8
 
+> RTF relative improve 12.8%, which count feature and decoder time.
+
 #### CER
 
 ```
-Overall -> 5.87 % N=104765 C=98909 S=5711 D=145 I=289
-Mandarin -> 5.86 % N=104762 C=98909 S=5708 D=145 I=289
+Overall -> 5.83 % N=104765 C=98943 S=5675 D=147 I=286
+Mandarin -> 5.83 % N=104762 C=98943 S=5672 D=147 I=286
 English -> 0.00 % N=0 C=0 S=0 D=0 I=0
 Other -> 100.00 % N=3 C=0 S=3 D=0 I=0
 ```
+
+#### RTF 
+
+```
+I1110 09:59:52.551712 37249 u2_recognizer_main.cc:122] total wav duration is: 36108.9 sec
+I1110 09:59:52.551717 37249 u2_recognizer_main.cc:123] total decode cost:9737.63 sec
+I1110 09:59:52.551723 37249 u2_recognizer_main.cc:124] RTF is: 0.269674
+```
\ No newline at end of file