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| author | Liwei Lin <lwlin7@gmail.com> | 2016-09-07 10:04:00 +0100 |
|---|---|---|
| committer | Sean Owen <sowen@cloudera.com> | 2016-09-07 10:04:00 +0100 |
| commit | 3ce3a282c8463408f9a2db93c1748e8df8087e07 (patch) | |
| tree | 7814535174f3ef7294cfd20e4dfeae28fecd4693 /yarn/pom.xml | |
| parent | 9fccde4ff80fb0fd65a9e90eb3337965e4349de4 (diff) | |
| download | spark-3ce3a282c8463408f9a2db93c1748e8df8087e07.tar.gz spark-3ce3a282c8463408f9a2db93c1748e8df8087e07.tar.bz2 spark-3ce3a282c8463408f9a2db93c1748e8df8087e07.zip | |
[SPARK-17359][SQL][MLLIB] Use ArrayBuffer.+=(A) instead of ArrayBuffer.append(A) in performance critical paths
## What changes were proposed in this pull request?
We should generally use `ArrayBuffer.+=(A)` rather than `ArrayBuffer.append(A)`, because `append(A)` would involve extra boxing / unboxing.
## How was this patch tested?
N/A
Author: Liwei Lin <lwlin7@gmail.com>
Closes #14914 from lw-lin/append_to_plus_eq_v2.
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