Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/22661#discussion_r224934704
--- Diff: sql/core/benchmarks/JoinBenchmark-results.txt ---
@@ -0,0 +1,75 @@
+================================================================================================
+Join Benchmark
+================================================================================================
+
+OpenJDK 64-Bit Server VM 1.8.0_181-b13 on Linux 3.10.0-862.3.2.el7.x86_64
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Join w long: Best/Avg Time(ms) Rate(M/s)
Per Row(ns) Relative
+------------------------------------------------------------------------------------------------
+Join w long wholestage off 4464 / 4483 4.7
212.9 1.0X
+Join w long wholestage on 289 / 339 72.6
13.8 15.5X
+
+OpenJDK 64-Bit Server VM 1.8.0_181-b13 on Linux 3.10.0-862.3.2.el7.x86_64
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Join w long duplicated: Best/Avg Time(ms) Rate(M/s)
Per Row(ns) Relative
+------------------------------------------------------------------------------------------------
+Join w long duplicated wholestage off 5662 / 5678 3.7
270.0 1.0X
+Join w long duplicated wholestage on 332 / 345 63.1
15.8 17.0X
+
+OpenJDK 64-Bit Server VM 1.8.0_181-b13 on Linux 3.10.0-862.3.2.el7.x86_64
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Join w 2 ints: Best/Avg Time(ms) Rate(M/s)
Per Row(ns) Relative
+------------------------------------------------------------------------------------------------
+Join w 2 ints wholestage off 173174 / 173183 0.1
8257.6 1.0X
+Join w 2 ints wholestage on 166350 / 198362 0.1
7932.2 1.0X
--- End diff --
+1.
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