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Posted to dev@giraph.apache.org by "Maja Kabiljo (JIRA)" <ji...@apache.org> on 2013/07/30 21:09:50 UTC

[jira] [Resolved] (GIRAPH-721) Don't call progress on each edge/vertex loaded

     [ https://issues.apache.org/jira/browse/GIRAPH-721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maja Kabiljo resolved GIRAPH-721.
---------------------------------

    Resolution: Fixed
    
> Don't call progress on each edge/vertex loaded
> ----------------------------------------------
>
>                 Key: GIRAPH-721
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-721
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Maja Kabiljo
>            Assignee: Maja Kabiljo
>         Attachments: GIRAPH-721.patch
>
>
> While loading data with edge input, we call context.progress() on each edge. I was experimenting with where cpu is going during the input with hundreds of billions of edges, and about 10% of it is just calling progress. We don't need to call progress here at all, since the main thread which waits on input threads to finish does that for us.

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