diff --git a/runtime/examples/u2pp_ol/wenetspeech/.gitignore b/runtime/examples/u2pp_ol/wenetspeech/.gitignore
new file mode 100644
index 000000000..bbd86a25b
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+++ b/runtime/examples/u2pp_ol/wenetspeech/.gitignore
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+data
+exp
diff --git a/runtime/examples/u2pp_ol/wenetspeech/RESULTS.md b/runtime/examples/u2pp_ol/wenetspeech/RESULTS.md
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+# aishell test
+
+7176 utts, duration 36108.9 sec.
+
+## 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
+
+`local/recognizer.sh`
+
+#### CER
+
+```
+Overall -> 5.75 % N=104765 C=99035 S=5587 D=143 I=294
+Mandarin -> 5.75 % N=104762 C=99035 S=5584 D=143 I=294
+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 
+
+```
+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
+I1027 10:52:38.662876 51665 u2_recognizer_main.cc:123] RTF is: 0.309318
+```
+
+### INT8
+
+`local/recognizer_quant.sh`
+
+> RTF relative improve 12.8%, which count feature and decoder time.
+> Test under Paddle commit c331e2ce2031d68a553bc9469a07c30d718438f3  
+
+#### CER
+
+```
+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
+```
+
+### CTC Prefix Beam Search
+
+`local/decode.sh`
+
+#### CER
+
+```
+Overall -> 6.74 % N=104765 C=98106 S=6516 D=143 I=401
+Mandarin -> 6.74 % N=104762 C=98106 S=6513 D=143 I=401
+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
+
+```