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https://issues.apache.org/jira/browse/HBASE-9868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13810569#comment-13810569
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Nicolas Liochon commented on HBASE-9868:
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bq. I don't see blockage (maybe my 'servers' are too friction-free being in
essence /dev/nulls).
I see it in "public synchronized V lowerValueByKey". It's with a real cluster,
but there are a lot of region and the i/o are good, so don't have any retry.
> 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
>
>
> 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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