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https://issues.apache.org/jira/browse/HAMA-704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582958#comment-13582958
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Thomas Jungblut commented on HAMA-704:
--------------------------------------

bq.Are these numbers for trunk or with patch?

With HAMA-735 on trunk. And I should note that this was also created with 
Java7. Anyway, it should yield us as baseline to detect improvements.

bq.Hence the Collections.sort and binarySearch. We need the check only for 
addition of vertices right?

That would help in speed, I wonder if the partitioner/user should deduplicate 
the graph by IDs. 

bq.The vertex.compute() should be executed even if there's no messages until 
it's halted by user.

Exactly.
                
> Optimization of memory usage during message processing
> ------------------------------------------------------
>
>                 Key: HAMA-704
>                 URL: https://issues.apache.org/jira/browse/HAMA-704
>             Project: Hama
>          Issue Type: Improvement
>          Components: graph
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>            Priority: Critical
>             Fix For: 0.6.1
>
>         Attachments: HAMA-704.patch-v1, hama-704_v05.patch, 
> HAMA-704-v2.patch, localdisk.patch, mytest.patch, patch.txt, patch.txt, 
> removeMsgMap.patch
>
>
> <vertex, message> map seems consume a lot of memory. We should figure out an 
> efficient way to reduce memory.

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