dongjoon-hyun commented on a change in pull request #29233:
URL: https://github.com/apache/spark/pull/29233#discussion_r460387006
##########
File path: core/benchmarks/MapStatusesSerDeserBenchmark-jdk11-results.txt
##########
@@ -1,64 +1,64 @@
-OpenJDK 64-Bit Server VM 11.0.4+11-post-Ubuntu-1ubuntu218.04.3 on Linux
4.15.0-1044-aws
+OpenJDK 64-Bit Server VM 11.0.8+10-post-Ubuntu-0ubuntu118.04.1 on Linux
4.15.0-1044-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
200000 MapOutputs, 10 blocks w/ broadcast: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
-------------------------------------------------------------------------------------------------------------------------
-Serialization 170 178
9 1.2 849.7 1.0X
-Deserialization 530 535
9 0.4 2651.1 0.3X
+-------------------------------------------------------------------------------------------------------------------------
+Serialization 175 183
12 1.1 874.1 1.0X
+Deserialization 458 462
6 0.4 2288.6 0.4X
-Compressed Serialized MapStatus sizes: 411 bytes
+Compressed Serialized MapStatus sizes: 410 bytes
Compressed Serialized Broadcast MapStatus sizes: 2 MB
-OpenJDK 64-Bit Server VM 11.0.4+11-post-Ubuntu-1ubuntu218.04.3 on Linux
4.15.0-1044-aws
+OpenJDK 64-Bit Server VM 11.0.8+10-post-Ubuntu-0ubuntu118.04.1 on Linux
4.15.0-1044-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
200000 MapOutputs, 10 blocks w/o broadcast: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
-------------------------------------------------------------------------------------------------------------------------
-Serialization 157 165
7 1.3 785.4 1.0X
-Deserialization 495 588
79 0.4 2476.7 0.3X
+--------------------------------------------------------------------------------------------------------------------------
+Serialization 160 171
8 1.2 801.1 1.0X
+Deserialization 453 484
38 0.4 2263.4 0.4X
Review comment:
18% reduced.
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