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From "Josh Wills (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CRUNCH-508) Improve performance of Scala Enumeration counters in Scrunch
Date Thu, 23 Apr 2015 13:50:38 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Wills resolved CRUNCH-508.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 0.12.0

Pushed to master.

> Improve performance of Scala Enumeration counters in Scrunch
> ------------------------------------------------------------
>
>                 Key: CRUNCH-508
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-508
>             Project: Crunch
>          Issue Type: Improvement
>            Reporter: Josh Wills
>             Fix For: 0.12.0
>
>         Attachments: CRUNCH-508.patch
>
>
> The Scrunch Increment* traits support using Scala Enumerations as counters in pipelines
by converting the Enumeration/Value pairs to the equivalent String values. The Enumeration.toString
method isn't particularly optimized though, so doing this conversion is expensive enough from
a CPU perspective that it's worthwhile to cache the String value so as not to have to do the
computation for every input record.



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