hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16652) Figure out performance difference between increment and append
Date Wed, 21 Sep 2016 02:19:20 GMT

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

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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message