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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9868) Remove some array copy, especially around protobuf
Date Fri, 01 Nov 2013 10:23:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811152#comment-13811152
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Nicolas Liochon commented on HBASE-9868:
----------------------------------------

v2 takes into account the changes in HBASE-9867.
I also removed two protobuf builder object creation in a loop. We've got a bunch of work in
this area ahead of us. Likely removing the class-in-the-middle and use differently the builder
pattern is the way to go...


> Remove some array copy, especially around protobuf
> --------------------------------------------------
>
>                 Key: HBASE-9868
>                 URL: https://issues.apache.org/jira/browse/HBASE-9868
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, Protobufs
>    Affects Versions: 0.98.0, 0.96.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.98.0, 0.96.1
>
>         Attachments: 9868.trunk.v1.patch, 9868.v1.patch, 9868.v2.patch
>
>
> Profiling the client shows that we're spending some time in array copy (10% of the code
execution, 3% of the total time) in some array copy that we can avoid.



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