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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9806) Add PerfEval tool for BlockCache
Date Tue, 20 May 2014 10:52:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14003073#comment-14003073
] 

Nick Dimiduk commented on HBASE-9806:
-------------------------------------

Moving to the io.hfile package makes sense. Maybe we merge this one into HFilePerfEval, as
these are closely related?

I'd like to add support for more schema varieties and access distributions on PerfEval, similar
to what these tools have. The whole business could use some refactor toward more code sharing.
It all depends on the goal of the tool though. I like PerfEval because it's closer to what
a user will see. OTOH, it makes it difficult for an hbase dev to get a sense for the IO subsystem
pieces in isolation.

> Add PerfEval tool for BlockCache
> --------------------------------
>
>                 Key: HBASE-9806
>                 URL: https://issues.apache.org/jira/browse/HBASE-9806
>             Project: HBase
>          Issue Type: Test
>          Components: Performance, test
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>         Attachments: HBASE-9806.00.patch, HBASE-9806.01.patch, HBASE-9806.02.patch, conf_20g.patch,
conf_3g.patch, test1_run1_20g.pdf, test1_run1_3g.pdf, test1_run2_20g.pdf, test1_run2_3g.pdf
>
>
> We have at least three different block caching layers with myriad configuration settings.
Let's add a tool for evaluating memory allocations and configuration combinations with different
access patterns.



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