[jira] [Updated] (SPARK-9018) Implement a generic Timer utility for ML algorithms

["Xiangrui Meng (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-9018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng updated SPARK-9018:
---------------------------------
    Shepherd: Joseph K. Bradley  (was: Xiangrui Meng)

> Implement a generic Timer utility for ML algorithms
> ---------------------------------------------------
>
>                 Key: SPARK-9018
>                 URL: https://issues.apache.org/jira/browse/SPARK-9018
>             Project: Spark
>          Issue Type: Sub-task
>          Components: ML, MLlib
>            Reporter: Xiangrui Meng
>            Assignee: Xiangrui Meng
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> The Timer utility should be based on the one implemented in trees. In particular, we should offer two versions:
> 1. a global timer that is initialized on the driver and use accumulator to aggregate time
> 2. a local timer that is initialized on the worker, and only provide per task measurement.
> 1) needs some performance benchmark and guidance on the granularity.



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