ulysses-you commented on a change in pull request #34310:
URL: https://github.com/apache/spark/pull/34310#discussion_r734281197



##########
File path: sql/core/benchmarks/ByteArrayBenchmark-results.txt
##########
@@ -0,0 +1,16 @@
+================================================================================================

Review comment:
       Here is the old code path benchmark result:
   
   JDK8
   ```
   
================================================================================================
   byte array comparisons
   
================================================================================================
   
   OpenJDK 64-Bit Server VM 1.8.0_312-b07 on Linux 5.8.0-1042-azure
   Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz
   Byte Array compareTo:                     Best Time(ms)   Avg Time(ms)   
Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
   
------------------------------------------------------------------------------------------------------------------------
   2-7 byte                                            799            836       
   24         82.0          12.2       1.0X
   8-16 byte                                           832            906       
   32         78.8          12.7       1.0X
   16-32 byte                                          812            854       
   28         80.7          12.4       1.0X
   512-1024 byte                                      1057           1088       
   20         62.0          16.1       0.8X
   512 byte slow                                     24628          26054       
  NaN          2.7         375.8       0.0X
   2-7 byte                                            811            849       
   23         80.8          12.4       1.0X
   ```
   
   JDK11
   ```
   
================================================================================================
   byte array comparisons
   
================================================================================================
   
   OpenJDK 64-Bit Server VM 11.0.13+8-LTS on Linux 5.8.0-1042-azure
   Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz
   Byte Array compareTo:                     Best Time(ms)   Avg Time(ms)   
Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
   
------------------------------------------------------------------------------------------------------------------------
   2-7 byte                                            771            812       
   28         85.0          11.8       1.0X
   8-16 byte                                           839            857       
   13         78.1          12.8       0.9X
   16-32 byte                                          898            926       
   17         73.0          13.7       0.9X
   512-1024 byte                                      1141           1189       
   23         57.4          17.4       0.7X
   512 byte slow                                     40124          40689       
  495          1.6         612.2       0.0X
   2-7 byte                                            827            847       
   14         79.3          12.6       0.9X
   ```




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