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https://issues.apache.org/jira/browse/HBASE-16023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15331383#comment-15331383
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Heng Chen commented on HBASE-16023:
-----------------------------------
Push addendum patch to master
> Fastpath for the FIFO rpcscheduler
> ----------------------------------
>
> Key: HBASE-16023
> URL: https://issues.apache.org/jira/browse/HBASE-16023
> Project: HBase
> Issue Type: Sub-task
> Components: Performance, rpc
> Affects Versions: 2.0.0, 1.3.0
> Reporter: stack
> Assignee: stack
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-16023.addenum.patch,
> HBASE-16023.branch-1.001.patch, hits.nofifo.fifoplusfp.fifownofp.hacks.png
>
>
> This is an idea copied from kudu where we skip queuing a request if there is
> a handler ready to go; we just do a direct handoff from reader to handler.
> Makes for close to a %20 improvement in random read workloadc testing moving
> the bottleneck to HBASE-15716 and to returning the results.
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