[
https://issues.apache.org/jira/browse/HBASE-22387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16848982#comment-16848982
]
Zheng Hu commented on HBASE-22387:
----------------------------------
I caught a jstack (see
[blocksByHFile-stack-trace.png|https://issues.apache.org/jira/secure/attachment/12969914/blocksByHFile-stack-trace.png])
which said blocksByHFile.add(cacheKey) in
BucketCache#cacheBlockWithWaitInternal seems to be no so efficient when in high
Get throughtput.
> 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: blocksByHFile-stack-trace.png, screenshot-1.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.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
