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https://issues.apache.org/jira/browse/GIRAPH-28?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13105004#comment-13105004
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Jake Mannix commented on GIRAPH-28:
-----------------------------------
Ok another patch coming soon for this, but good news: this is the output of
the object size calculator now:
(key: Primitive is what Dmitriy put in that test code, LDFD is a trivial class
which extends the new LongDoubleFloatDoubleVertex class, and shows exactly the
same memory as this)
Tiny: 0 840
Object: 0 872
Primitive: 0 4536
LDFD: 0 4536
Tiny: 1 840
Object: 1 976
Primitive: 1 4536
LDFD: 1 4536
Tiny: 10 840
Object: 10 1912
Primitive: 10 4536
LDFD: 10 4536
Tiny: 100 2640
Object: 100 11272
Primitive: 100 4536
LDFD: 100 4536
Tiny: 1000 16080
Object: 1000 104872
Primitive: 1000 46784
LDFD: 1000 46784
Tiny: 10000 123600
Object: 10000 1040872
Primitive: 10000 302000
LDFD: 10000 302000
> Introduce new primitive-specific MutableVertex subclasses
> ---------------------------------------------------------
>
> Key: GIRAPH-28
> URL: https://issues.apache.org/jira/browse/GIRAPH-28
> Project: Giraph
> Issue Type: New Feature
> Components: graph
> Affects Versions: 0.70.0
> Reporter: Jake Mannix
> Assignee: Jake Mannix
> Attachments: GIRAPH-28.diff, GIRAPH-28.diff
>
>
> As discussed on the list,
> MutableVertex<LongWritable,DoubleWritable,FloatWritable,DoubleWritable> (for
> example) could be highly optimized in its memory footprint if the vertex and
> edge data were held in a form which minimized Java object usage.
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