Xiangrui Meng created SPARK-7636:
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Summary: Significant performance regression with GradientDescent
in 1.4
Key: SPARK-7636
URL: https://issues.apache.org/jira/browse/SPARK-7636
Project: Spark
Issue Type: Bug
Components: MLlib
Affects Versions: 1.4.0
Reporter: Xiangrui Meng
Assignee: Xiangrui Meng
Priority: Blocker
Saw significant performance regression (11s in 1.3 vs. 33s in 1.4) with SGD on
a dataset of 1000000x1000. Need to investigate the root cause.
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