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https://issues.apache.org/jira/browse/SAMZA-245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066150#comment-14066150
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Yan Fang commented on SAMZA-245:
--------------------------------

Seems I have problem in running the same test. Downloaded the master and ran 
the same command line in my mac as you did, but got some errors actually. 

samza-test/build/test-results/TEST-org.apache.samza.test.performance.TestSamzaContainerPerformance.xml
 has errors. It says 

{code}
141421 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 10000 messages in 0 seconds.
141493 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 20000 messages in 0 seconds.
141530 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 30000 messages in 0 seconds.
141554 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 40000 messages in 0 seconds.
141581 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 50000 messages in 0 seconds.
141604 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 60000 messages in 0 seconds.
141627 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 70000 messages in 0 seconds.
141649 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 80000 messages in 0 seconds.
141678 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 90000 messages in 0 seconds.
141745 [ThreadJob] INFO org.apache.samza.test.performance.TestPerformanceTask - 
Processed 100000 messages in 0 seconds.
{code}

Also tested in my VM, which has similar errors, except the "0 second" become "1 
second"...

Did I miss something?

> Improve SystemConsumers performance
> -----------------------------------
>
>                 Key: SAMZA-245
>                 URL: https://issues.apache.org/jira/browse/SAMZA-245
>             Project: Samza
>          Issue Type: Bug
>          Components: container
>    Affects Versions: 0.6.0
>            Reporter: Chris Riccomini
>            Assignee: Chris Riccomini
>             Fix For: 0.8.0
>
>         Attachments: SAMZA-245-1.patch, SAMZA-245-3.patch, SAMZA-245.0.patch, 
> org.apache.samza.test.performance.TestSamzaContainerPerformance.SAMZA-245-3.html,
>  org.apache.samza.test.performance.TestSamzaContainerPerformance.master.html
>
>
> As part of SAMZA-220, a more radical patch was proposed. This patch appears 
> to improve SystemConsumers' performance pretty significantly, while also 
> reducing its complexity. The decision was made to move this change into the 
> 0.8.0 release, rather than the 0.7.0 release, since it's a fairly risky 
> change.
> This ticket is to explore updating SystemConsumers to eliminate almost all 
> loops in order to increase performance in the Samza container.



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