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https://issues.apache.org/jira/browse/BEAM-3388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16331379#comment-16331379
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ASF GitHub Bot commented on BEAM-3388:
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herohde opened a new pull request #4443: [BEAM-3388] Use general untyped
function call mechanism in Go SDK runtime
URL: https://github.com/apache/beam/pull/4443
* Dynamic functions can thus use it directly and avoid reflection
* Change decoders/encodes to simple wrappers to unify arity instead of full
specialization.
* Moved type-specialized code into separate package and import it in beamx
* Made templates more easily reusable for other types.
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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
> Priority: Major
>
> 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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