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| author | Aaron Davidson <aaron@databricks.com> | 2014-12-04 00:58:42 -0800 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2014-12-04 00:58:42 -0800 |
| commit | c6c7165e7ecf1690027d6bd4e0620012cd0d2310 (patch) | |
| tree | 2e23032af9332fb3fe1922a7bbf6d1fbec5cb271 /docs/tuning.md | |
| parent | 20bfea4ab7c0923e8d3f039d0c5098669db4d5b0 (diff) | |
| download | spark-c6c7165e7ecf1690027d6bd4e0620012cd0d2310.tar.gz spark-c6c7165e7ecf1690027d6bd4e0620012cd0d2310.tar.bz2 spark-c6c7165e7ecf1690027d6bd4e0620012cd0d2310.zip | |
[SQL] Minor: Avoid calling Seq#size in a loop
Just found this instance while doing some jstack-based profiling of a Spark SQL job. It is very unlikely that this is causing much of a perf issue anywhere, but it is unnecessarily suboptimal.
Author: Aaron Davidson <aaron@databricks.com>
Closes #3593 from aarondav/seq-opt and squashes the following commits:
962cdfc [Aaron Davidson] [SQL] Minor: Avoid calling Seq#size in a loop
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