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Posted to reviews@spark.apache.org by yucai <gi...@git.apache.org> on 2018/11/06 13:15:29 UTC
[GitHub] spark pull request #22823: [SPARK-25676][SQL][TEST] Rename and refactor Benc...
Github user yucai commented on a diff in the pull request:
https://github.com/apache/spark/pull/22823#discussion_r231116690
--- Diff: sql/core/benchmarks/WideTableBenchmark-results.txt ---
@@ -0,0 +1,17 @@
+================================================================================================
+projection on wide table
+================================================================================================
+
+OpenJDK 64-Bit Server VM 1.8.0_191-b12 on Linux 3.10.0-862.3.2.el7.x86_64
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+projection on wide table: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
+------------------------------------------------------------------------------------------------
+split threshold 10 38932 / 39307 0.0 37128.1 1.0X
+split threshold 100 31991 / 32556 0.0 30508.8 1.2X
+split threshold 1024 10993 / 11041 0.1 10483.5 3.5X
+split threshold 2048 8959 / 8998 0.1 8543.8 4.3X
--- End diff --
@dongjoon-hyun In my mac, at most case, `2048` is the best.
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