[
https://issues.apache.org/jira/browse/HBASE-8418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matteo Bertozzi updated HBASE-8418:
-----------------------------------
Attachment: HBASE-8418-0.94-v0.patch
attached a 94 version of the patch that caches the getRowLength() and uses that
instead of toShort().
I still have to see if it really improves the performance, I keep getting
different results but my guess is because I'm running on virtual machines...
the profiler at least shows less calls to Bytes.toShort() that was the top
function after StoreScanner.next()
> Caching KeyValue.getRowLength() to improve scan performance
> -----------------------------------------------------------
>
> Key: HBASE-8418
> URL: https://issues.apache.org/jira/browse/HBASE-8418
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Minor
> Attachments: HBASE-8418-0.94-v0.patch
>
>
> Looking at the profile seems that Bytes.toShort() is called a lot.
> the calls are in ScanQueryMatcher.match() and KeyValue.KeyComparator.compare()
> getKeyLength() is already cached, but getRowLength() is not.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
