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Posted to issues@flink.apache.org by "Márton Balassi (JIRA)" <ji...@apache.org> on 2016/03/10 11:23:40 UTC

[jira] [Created] (FLINK-3599) GSoC: Code Generation in Serializers

Márton Balassi created FLINK-3599:
-------------------------------------

             Summary: GSoC: Code Generation in Serializers
                 Key: FLINK-3599
                 URL: https://issues.apache.org/jira/browse/FLINK-3599
             Project: Flink
          Issue Type: Improvement
          Components: Type Serialization System
            Reporter: Márton Balassi
            Assignee: Gabor Horvath


The current implementation of the serializers can be a
performance bottleneck in some scenarios. These performance problems were
also reported on the mailing list recently [1].

E.g. the PojoSerializer uses reflection for accessing the fields, which is slow [2].

For the complete proposal see [3].

[1] http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Tuple-performance-and-the-curious-JIT-compiler-td10666.html

[2] https://github.com/apache/flink/blob/master/flink-java/src/main/java/org/apache/flink/api/java/typeutils/runtime/PojoSerializer.java#L369

[3] https://docs.google.com/document/d/1VC8lCeErx9kI5lCMPiUn625PO0rxR-iKlVqtt3hkVnk



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