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https://issues.apache.org/jira/browse/HBASE-16612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15483734#comment-15483734
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Anoop Sam John commented on HBASE-16612:
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JMH shows ~3x gain with arrays? That is good.. This usage is there in hot code
paths.. Lets get this in for trunk
> Use array to cache Types for KeyValue.Type.codeToType
> -----------------------------------------------------
>
> Key: HBASE-16612
> URL: https://issues.apache.org/jira/browse/HBASE-16612
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.1.6, 1.2.3, 0.98.22
> Reporter: Phil Yang
> Assignee: Phil Yang
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-16612-v1.patch
>
>
> We don't rely on enum ordinals in KeyValye.Type. We have own code in it. In
> codeToType, we use a loop to find the Type which is not a good idea. We can
> just use an arryay[256] to cache all types.
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