cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-2020) stress.java performance falls off heavily towards the end
Date Wed, 23 Feb 2011 20:12:39 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12998531#comment-12998531
] 

Hudson commented on CASSANDRA-2020:
-----------------------------------

Integrated in Cassandra-0.7 #312 (See [https://hudson.apache.org/hudson/job/Cassandra-0.7/312/])
    Switch stress.java to a producer/consumer model for better performance.
Patch by Pavel Yaskevich, reviewed by brandonwilliams for CASSANDRA-2020


> stress.java performance falls off heavily towards the end
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-2020
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2020
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Contrib
>            Reporter: Brandon Williams
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>             Fix For: 0.7.3
>
>         Attachments: CASSANDRA-2020.patch
>
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> This is due to threads completing towards the end, such that there aren't enough to fully
stress the cluster.  The main problem here is that stress.java is a straight port of stress.py,
where each thread runs through some range until it's done, and the threads finish at different
times (probably offset by jvm warmup time.)  Instead, a producer/consumer model would work
better.

-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message