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Posted to dev@s2graph.apache.org by "DOYUNG YOON (JIRA)" <ji...@apache.org> on 2016/04/28 16:08:12 UTC
[jira] [Created] (S2GRAPH-69) Change IndexEdge's props data type.
DOYUNG YOON created S2GRAPH-69:
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Summary: Change IndexEdge's props data type.
Key: S2GRAPH-69
URL: https://issues.apache.org/jira/browse/S2GRAPH-69
Project: S2Graph
Issue Type: Sub-task
Reporter: DOYUNG YOON
Assignee: DOYUNG YOON
User query traverse on IndexEdge, and current implemenation for deserialize bytes array into IndexEdge first(IndexEdgeDeserializable), then call IndexEdge#toEdge to create Edge class.
I found out following parts copy data which is unnecessary.
{noformat}
props.map { case (k, v) => k -> InnerValLikeWithTs(v, version) }
{noformat}
This inefficiency exist because IndexEdge use Map[Byte, InnerValLike] and Edge use Map[Byte, InnerValLikeWithTs] as type of props value.
It sounds like micro optimization but since this is called a lot, actually dependent on # fetched edges, I think improving this would create some changes on performance.
To remove unnecessary copy, I am suggesting change type of IndexEdge's props same with Edge's props type Map[Byte, InnerValLikeWithTs].
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