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https://issues.apache.org/jira/browse/HBASE-16652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15508452#comment-15508452
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Heng Chen commented on HBASE-16652:
-----------------------------------

Increment entry size is stable due to it just one long size,  append entry size 
is random depends on original value,  but it is larger than increment,  because 
in PE,  we set 26 bytes for append value.

> Figure out performance difference between increment and append
> --------------------------------------------------------------
>
>                 Key: HBASE-16652
>                 URL: https://issues.apache.org/jira/browse/HBASE-16652
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Heng Chen
>              Labels: performance
>         Attachments: 1.diff, HBASE-16652.patch, append.jfr, 
> append_get_profile.png, increment.jfr, increment_get_profile.png
>
>
> When do performance test in HBASE-16625,  i found it has the very big 
> difference between Append and Increment (append is about 37% faster than 
> increment).
> As [~stack] mentioned in 
> https://issues.apache.org/jira/browse/HBASE-16610?focusedCommentId=15493166&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15493166,
>    append and increment has been unified in server-side,  and they looks the 
> same in client-side. 
> This issue is to figure out why the performance looks different between them.



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