hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-576) Investigate IPC performance
Date Tue, 14 Oct 2008 21:33:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639598#action_12639598
] 

stack commented on HBASE-576:
-----------------------------

I backported J-D's HTD patch.  Profiling 0.18 branch, checking if key is of root region is
consuming loads of CPU.  This squashes that.

> Investigate IPC performance
> ---------------------------
>
>                 Key: HBASE-576
>                 URL: https://issues.apache.org/jira/browse/HBASE-576
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: ipc
>    Affects Versions: 0.1.0, 0.1.1, 0.1.2, 0.2.0
>            Reporter: Jim Kellerman
>            Assignee: stack
>             Fix For: 0.19.0
>
>         Attachments: 576-nomethodname.patch, htd.patch, pe.patch
>
>
> Turning off all file I/O, and running the PerformanceEvaluation test, of 1,048,576 sequential
writes to HBase managed to achieve only 7,285 IPCs per second.
> Running PerformanceEvaluation sequential write test modified to do an abort instead of
a commit, it was possible to do 68,337 operations per second. We are obviously spending a
lot of time doing IPCs. 
> We need to investigate to find the bottleneck. Marshalling and unmarshalling? Socket
setup and teardown?

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message