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https://issues.apache.org/jira/browse/BEAM-6503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17131450#comment-17131450
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Beam JIRA Bot commented on BEAM-6503:
-------------------------------------
This issue was marked "stale-assigned" and has not received a public comment in
7 days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> PCollectionViews$SimplePCollectionView.hashCode once again allocates memory
> (fix reverted, then fixed again)
> ------------------------------------------------------------------------------------------------------------
>
> Key: BEAM-6503
> URL: https://issues.apache.org/jira/browse/BEAM-6503
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Affects Versions: 2.10.0
> Reporter: Vojtech Janota
> Priority: P4
>
> I'm currently profiling memory consumption of our Beam pipeline and have
> noticed that
>
> org.apache.beam.sdk.values.PCollectionViews$SimplePCollectionView.hashCode()
> makes noticeable heap allocations. The implementation is:
> return Objects.hash(tag);
> That itself translates to:
> return Arrays.hashCode(values);
> Which performs implicit array creation in order to call:
> public static int Arrays.hashCode(Object a[]);
> Instead of the helper call, doing simple:
> tag.hashCode();
> Seems more appropriate.
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