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https://issues.apache.org/jira/browse/BEAM-3388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300806#comment-16300806
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ASF GitHub Bot commented on BEAM-3388:
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herohde opened a new pull request #4314: [BEAM-3388] Add Go SDK type
specialization of emitters
URL: https://github.com/apache/beam/pull/4314
Removes the reflective overhead for emitters of certain types. This is a
"poor man's templates" approach.
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> Reduce Go runtime reflective overhead
> -------------------------------------
>
> Key: BEAM-3388
> URL: https://issues.apache.org/jira/browse/BEAM-3388
> Project: Beam
> Issue Type: Improvement
> Components: sdk-go
> Reporter: Henning Rohde
> Assignee: Henning Rohde
>
> Go reflection is slow and we should avoid it in the Go SDK at runtime, when
> possible -- especially on the fast paths. It seems unlikely that the language
> runtime/libraries will improve any time soon:
> https://github.com/golang/go/issues/7818.
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