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Posted to mapreduce-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2011/06/14 13:55:47 UTC

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

[Gridmix] Improve cumulative CPU usage emulation
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                 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
             Fix For: 0.23.0


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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