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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13448) New Cell implementation with cached component offsets/lengths
Date Sat, 23 May 2015 07:12:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14557190#comment-14557190
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stack commented on HBASE-13448:
-------------------------------

[~anoop.hbase] My rig currently occupied. Will try when freed up. Will try on 0.98 so can
compare to Lars' runs.

[~lhofhansl] You've pasted your rig somewhere? It is a straight scan end to end? How to replicate?

bq. I think trunk would give a better picture because we are now not explicitly passing the
rowlength, rowkeys etcs to the comparators.

True but even not doing this, I would think that the caching of a few vital lengths that are
reconstructed repeatedly would make our perf be the same if not better (Lars is finding otherwise).





> New Cell implementation with cached component offsets/lengths
> -------------------------------------------------------------
>
>                 Key: HBASE-13448
>                 URL: https://issues.apache.org/jira/browse/HBASE-13448
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Scanners
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0
>
>         Attachments: 13448-0.98.txt, HBASE-13448.patch, HBASE-13448_V2.patch, HBASE-13448_V3.patch,
gc.png, hits.png
>
>
> This can be extension to KeyValue and can be instantiated and used in read path.



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