[
https://issues.apache.org/jira/browse/HBASE-24659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17166826#comment-17166826
]
niuyulin commented on HBASE-24659:
----------------------------------
[~zhangduo], I do performance test via YCSB, the version of client and server
are both 3.0.0-SNAPSHOT.
the different between w/ and w/o this pr is mostly within 10%
> Calculate FIXED_OVERHEAD automatically
> --------------------------------------
>
> Key: HBASE-24659
> URL: https://issues.apache.org/jira/browse/HBASE-24659
> Project: HBase
> Issue Type: Improvement
> Reporter: Duo Zhang
> Assignee: niuyulin
> Priority: Major
> Attachments: 50M-performance.pdf
>
>
> Now the FIXED_OVERHEAD in some classes are maintained manually, an we have a
> method to TestHeapSizes to confirm that the value is correct.
> But it is really hard for developers to count the fields in a complicated
> class like HRegion. Since we have the ability to calcuate the accurate size
> in UT, I think we it is also possible to calcuate it when loading the class,
> which is a one time operation so should not effect the performance too much.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
