Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/18966#discussion_r135164815
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/benchmark/BenchmarkWideTable.scala
---
@@ -42,12 +42,16 @@ class BenchmarkWideTable extends BenchmarkBase {
/**
* Here are some numbers with different split threshold:
*
- * Split threshold methods Rate(M/s) Per Row(ns)
- * 10 400 0.4 2279
- * 100 200 0.6 1554
- * 1k 37 0.9 1116
- * 8k 5 0.5 2025
- * 64k 1 0.0 21649
+ * Split threshold Rate(M/s) Per Row(ns)
+ * 10 0.5 2131.3
+ * 20 0.5 2073.7
+ * 40 0.5 2085.2
+ * 64 0.5 2012.2
+ * 80 0.5 2112.2
+ * 100 0.5 1984.0
+ * 128 0.5 2097.9
+ * 256 0.5 2038.9
+ * 1024 0.5 2045.2
--- End diff --
@gatorsmile Sorry, I updated the result. This threshold impacts this test
case.
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