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https://issues.apache.org/jira/browse/HBASE-13496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anoop Sam John updated HBASE-13496:
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Attachment: HBASE-13496.patch
Pls note the statements movements to other private methods. Actually we have
to reverseBytes (for littleEndian case) iff we have a non equal case.(Only
while compare- so inside the if). Not a big deal still avoiding 2 ops.
Also a multiply in loop var is avoided.
> Make Bytes$LexicographicalComparerHolder$UnsafeComparer::compareTo inlineable
> -----------------------------------------------------------------------------
>
> Key: HBASE-13496
> URL: https://issues.apache.org/jira/browse/HBASE-13496
> Project: HBase
> Issue Type: Sub-task
> Components: Scanners
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 2.0.0, 1.2.0
>
> Attachments: HBASE-13496.patch
>
>
> While testing with some other perf comparisons I have noticed that the above
> method (which is very hot in read path) is not getting inline
> bq.@ 16
> org.apache.hadoop.hbase.util.Bytes$LexicographicalComparerHolder$UnsafeComparer::compareTo
> (364 bytes) hot method too big
> We can do minor refactoring to make it inlineable.
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