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https://issues.apache.org/jira/browse/HBASE-3928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HBASE-3928:
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Attachment: hbase-3928.txt
This patch hasn't been thoroughly tested or benchmarked yet but might be
helpful. Someone got a cluster handy for YCSB scan/get benchmark for in-memory
active set size?
> 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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