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https://issues.apache.org/jira/browse/HBASE-9953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900549#comment-13900549
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Nick Dimiduk commented on HBASE-9953:
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Yes, but not on the tool itself. I ended up writing a driver script that does
the calculation for me. Nothing complicated. Let me throw together a patch.
> PerformanceEvaluation: Decouple data size from client concurrency
> -----------------------------------------------------------------
>
> Key: HBASE-9953
> URL: https://issues.apache.org/jira/browse/HBASE-9953
> Project: HBase
> Issue Type: Test
> Components: test
> Reporter: Nick Dimiduk
> Priority: Minor
>
> PerfEval tool provides a {{--rows=R}} for specifying the number of records to
> work with and requires the user provide a value of N, used as the concurrency
> level. From what I can tell, every concurrent process will interact with R
> rows. In order to perform an apples-to-apples test, the user must
> re-calculate the value R for every new value of N.
> Instead, I propose accepting a {{--size=S}} for the amount of data to
> interact with and let PerfEval divide that amongst the N clients on the
> user's behalf.
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