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https://issues.apache.org/jira/browse/IGNITE-27086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18041995#comment-18041995
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Nikolay Izhikov commented on IGNITE-27086:
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{noformat}
MASTER
Benchmark (key) (mapType) (size) (value)
Mode Cnt Score Error Units
JmhMapSerdesBenchmark.mapSerialization Integer HashMap 100000 Integer
avgt 15 2765182.760 ± 230120.913 ns/op
PATCH
Benchmark (key) (mapType) (size) (value)
Mode Cnt Score Error Units
JmhMapSerdesBenchmark.mapSerialization Integer HashMap 100000 Integer
avgt 15 2376290.496 ± 251289.373 ns/op
{noformat}
> BinaryWriter is created for every a map entry
> ---------------------------------------------
>
> Key: IGNITE-27086
> URL: https://issues.apache.org/jira/browse/IGNITE-27086
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maksim Timonin
> Assignee: Nikolay Izhikov
> Priority: Major
> Labels: ise
> Attachments: WritingBigMapReproducer.java
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> During serializing maps BinaryWriterExImpl#writeMap is called. For every key
> and value it calls BinaryWriterExImpl#writeObject. Every such call creates
> new BinaryWriterExImpl.
> It leads to populating jvm heap with similar objects. Especially for big maps.
> See example in the attach, when big map is created as argument for a
> ComputeTask.
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