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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11074) Have PE emit histogram stats as it runs rather than dump once at end of test
Date Fri, 25 Apr 2014 19:42:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13981496#comment-13981496
] 

Andrew Purtell commented on HBASE-11074:
----------------------------------------

Thanks [~stack] and [~ndimiduk]. I filed HBASE-11079 and will look for more related.

> Have PE emit histogram stats as it runs rather than dump once at end of test
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-11074
>                 URL: https://issues.apache.org/jira/browse/HBASE-11074
>             Project: HBase
>          Issue Type: Improvement
>          Components: Performance
>            Reporter: stack
>            Assignee: stack
>            Priority: Minor
>             Fix For: 0.99.0
>
>         Attachments: 11074.txt
>
>
> PE emits progress reading and writing.  Add to the progress emission current histogram
snapshot readings.  Means don' t have to wait till test completes to get idea of latencies.
 Here is sample:
> {code}
> 2014-04-24 22:47:28,085 INFO  [TestClient-0] hbase.PerformanceEvaluation: 0/188730/1048576,
Min=137.00, Mean=578.74, Max=5152756.00, StdDev=11884.79, 95th=1590.00, 99th=2950.68
> 2014-04-24 22:47:32,465 INFO  [TestClient-0] hbase.PerformanceEvaluation: 0/199215/1048576,
Min=137.00, Mean=570.19, Max=5152756.00, StdDev=11591.56, 95th=1543.00, 99th=2911.00
> 2014-04-24 22:47:37,334 INFO  [TestClient-0] hbase.PerformanceEvaluation: 0/209700/1048576,
Min=137.00, Mean=564.80, Max=5152756.00, StdDev=11317.96, 95th=1480.00, 99th=2863.00
> {code}



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