Vojtech Janota created BEAM-5933:
------------------------------------
Summary: PCollectionViews$SimplePCollectionView.hashCode allocates
memory
Key: BEAM-5933
URL: https://issues.apache.org/jira/browse/BEAM-5933
Project: Beam
Issue Type: Improvement
Components: sdk-java-core
Affects Versions: 2.8.0
Reporter: Vojtech Janota
Assignee: Kenneth Knowles
I'm currently profiling memory consumption of our Beam pipeline and have
noticed that
org.apache.beam.sdk.values.PCollectionViews$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.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
