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https://issues.apache.org/jira/browse/SPARK-4717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-4717.
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Resolution: Fixed
Fix Version/s: 1.2.0
Issue resolved by pull request 3577
[https://github.com/apache/spark/pull/3577]
> Optimize BLAS library to avoid de-reference multiple times in loop
> ------------------------------------------------------------------
>
> Key: SPARK-4717
> URL: https://issues.apache.org/jira/browse/SPARK-4717
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: DB Tsai
> Fix For: 1.2.0
>
>
> Have a local reference to `values` and `indices` array in the `Vector` object
> so JVM can locate the value with one operation call. See `SPARK-4581` for
> similar optimization, and the bytecode analysis.
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