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https://issues.apache.org/jira/browse/HBASE-3928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041405#comment-13041405
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stack commented on HBASE-3928:
------------------------------
@Andrew Todd has two +1s now but he's the one asking for loadings (Todd if you
want us to commit just say. If you want to wait on proof that its not breaking
perf before commit, just say -- sounds like Andrew will give it a go).
> Some potential performance improvements to Bytes/KeyValue
> ---------------------------------------------------------
>
> Key: HBASE-3928
> URL: https://issues.apache.org/jira/browse/HBASE-3928
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.92.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Fix For: 0.92.0
>
> Attachments: hbase-3928.txt
>
>
> We use Bytes.compareTo() a lot where we could be using a more efficient
> equals() method. The trick that makes equals() faster than compareTo is that
> we can short-circuit two common cases:
> Case 1) the length is not the same - only need to do one comparison
> Case 2) the two arrays have the same length and a common prefix: compare the
> last byte first, since it's the one most likely to differ (given we are
> usually comparing adjacent sorted data).
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