Maksim Timonin created IGNITE-27088:
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Summary: BinaryWriter should use internal String#value
Key: IGNITE-27088
URL: https://issues.apache.org/jira/browse/IGNITE-27088
Project: Ignite
Issue Type: Improvement
Reporter: Maksim Timonin
Attachments: WritingBigMapReproducer.java
While writing Strings in BinaryWriter we call BinaryWriterExImpl#writeString,
that calls String#getBytes.
Last call creates a copy of internal String#value byte array. Java does it
intentionally, to avoid scenario when this array will be changed.
But writing a lot of strings leads to useless heap usage for creating such
copies. Actually we can get this array using Unsafe/Reflection to optimize
String writings.
This change should be done carefully, because String.getBytes also provides
encoding, and this behavior must be taken into account.
Example of writeString/writeByteArray in attach
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