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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2015/03/10 02:25:39 UTC

[jira] [Updated] (MAPREDUCE-2591) [Gridmix] Improve cumulative CPU usage emulation

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer updated MAPREDUCE-2591:
----------------------------------------
    Fix Version/s:     (was: 0.24.0)

> [Gridmix] Improve cumulative CPU usage emulation
> ------------------------------------------------
>
>                 Key: MAPREDUCE-2591
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2591
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/gridmix
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>
> MAPREDUCE-2106 introduced a basic cumulative cpu usage emulation in Gridmix. There are some known cases where it can be improved. The cases are
> 1. JVM reuse
> 2. Short lived maps emulating high CPU usage
> 3. Long running maps/reducers with high CPU usage



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