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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2015/05/15 21:19:00 UTC

[jira] [Closed] (SPARK-7636) Significant performance regression with GradientDescent in 1.4

     [ https://issues.apache.org/jira/browse/SPARK-7636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng closed SPARK-7636.
--------------------------------
    Resolution: Not A Problem

> 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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