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https://issues.apache.org/jira/browse/HBASE-22387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16855535#comment-16855535
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Zheng Hu commented on HBASE-22387:
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[~anoop.hbase], Yeah, filed two HDFS issues for this: HDFS-14535 &
HDFS-14541, Our HDFS team and I will prepare patches for those two perf
issues from DFSClient.
> Evaluate the get/scan performance after reading HFile block into offheap
> directly
> ---------------------------------------------------------------------------------
>
> Key: HBASE-22387
> URL: https://issues.apache.org/jira/browse/HBASE-22387
> Project: HBase
> Issue Type: Sub-task
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments:
> 0001-Initialize-a-small-buffer-to-send-the-short-circuit-.patch,
> G1GC-stage-stw.case01.png, G1GC-stage-stw.case02-with-buffer-size-64KB.png,
> G1GC-stw.case01.png, G1GC-stw.case02-with-buffer-size-64KB.png,
> QPS-latency.case01.png, QPS-latency.case02-with-buffer-size-64KB.png,
> async-prof-pid-24534-alloc-2.svg, async-prof-pid-25042-alloc-2.svg,
> async-prof-pid-25042-cpu-1.svg, async-prof-pid-25042-lock-3.svg,
> blockReaderRemote.png, blocksByHFile-stack-trace.png, screenshot-1.png,
> screenshot-2.png, test-cluster-configuration-details.png
>
>
> Now, all sub-tasks has been resolved now (except the HBASE-21946 because of
> the hadoop dependency problem), will provide some performance benckmarks to
> show the latency improvement.
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