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https://issues.apache.org/jira/browse/HBASE-9953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13983855#comment-13983855
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Nick Dimiduk commented on HBASE-9953:
-------------------------------------
Yes, I've observed our population doesn't quite match the space available.
Something is lying, or at least off by some small amount that's repeated many
times over, but I don't yet know what.
> 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: Performance
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Priority: Minor
> Fix For: 0.99.0
>
> Attachments: HBASE-9953.00.patch, HBASE-9953.01.patch
>
>
> 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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