SPARK-31364 Benchmark Parquet Predicate Pushdown

Add jdk8 benchmark result

Author: JiJiTang

sql/core/benchmarks/ParquetNestedPredicatePushDownBenchmark-results.txt

@@ -0,0 +1,21 @@
+OpenJDK 64-Bit Server VM 1.8.0_252-b09 on Mac OS X 10.14.6
+Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz
+LoadNoRowGroupsWhenPredicatePushedDown:   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+NestedFieldsPredicatePushDownDisabled             33189          34705         443          3.2         316.5       1.0X
+NestedFieldsPredicatePushDownEnabled                 81             93           8       1291.5           0.8     408.8X
+
+OpenJDK 64-Bit Server VM 1.8.0_252-b09 on Mac OS X 10.14.6
+Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz
+LoadSomeRowGroupsWhenPredicatePushedDown:  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+NestedFieldsPredicatePushDownDisabled             33122          34397         901          3.2         315.9       1.0X
+NestedFieldsPredicatePushDownEnabled               3393           3449          54         30.9          32.4       9.8X
+
+OpenJDK 64-Bit Server VM 1.8.0_252-b09 on Mac OS X 10.14.6
+Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz
+LoadAllRowGroupsWhenPredicatePushedDown:  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+NestedFieldsPredicatePushDownDisabled             35266          35849         572          3.0         336.3       1.0X
+NestedFieldsPredicatePushDownEnabled              34682          36049         NaN          3.0         330.8       1.0X
+

sql/core/src/test/scala/org/apache/spark/sql/execution/benchmark/ParquetNestedPredicatePushDownBenchmark.scala

@@ -78,6 +78,7 @@ object ParquetNestedPredicatePushDownBenchmark extends SqlBasedBenchmark {
         benchmark.run()
     }
   }
+
   /**
    * Benchmark for sorted data with a filter which allows to filter out all the row groups
    * when nested fields predicate push down enabled
@@ -104,15 +105,13 @@ object ParquetNestedPredicatePushDownBenchmark extends SqlBasedBenchmark {
    * overhead or not if enable nested predicate push down.
    */
   def runLoadAllRowGroupsWhenPredicatePushedDown(): Unit = {
-
     // all row groups will be loaded with a whole range filter
     val filterFn: DataFrame => DataFrame = { df =>
       df.filter("nested.x >= 0").filter(s"nested.x <= $N")
     }
     createAndRunBenchmark("LoadAllRowGroupsWhenPredicatePushedDown", filterFn)
   }
 
-
   override def runBenchmarkSuite(mainArgs: Array[String]): Unit = {
     runLoadNoRowGroupWhenPredicatePushedDown()
     runLoadSomeRowGroupWhenPredicatePushedDown()