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Posted to dev@avro.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/04/07 01:41:00 UTC
[jira] [Commented] (AVRO-2090) Improve encode/decode time for
SpecificRecord using code generation
[ https://issues.apache.org/jira/browse/AVRO-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429195#comment-16429195 ]
ASF GitHub Bot commented on AVRO-2090:
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rstata commented on issue #256: AVRO-2090: Improve encode/decode time for SpecificRecord using code generation
URL: https://github.com/apache/avro/pull/256#issuecomment-379423354
This work has gotten a bit old in my head. I can dust it off and address the issues raised in this ticket, but want to make sure there is genuine interest before making the effort.
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> Improve encode/decode time for SpecificRecord using code generation
> -------------------------------------------------------------------
>
> Key: AVRO-2090
> URL: https://issues.apache.org/jira/browse/AVRO-2090
> Project: Avro
> Issue Type: Improvement
> Components: java
> Reporter: Raymie Stata
> Assignee: Raymie Stata
> Priority: Major
> Attachments: customcoders.md
>
>
> Compared to GenericRecords, SpecificRecords offer type-safety plus the performance of traditional getters/setters/instance variables. But these are only beneficial to Java code accessing those records. SpecificRecords inherit serialization and deserialization code from GenericRecords, which is dynamic and thus slow (in fact, benchmarks show that serialization and deserialization is _slower_ for SpecificRecord than for GenericRecord).
> This patch extends record.vm to generate custom, higher-performance encoder and decoder functions for SpecificRecords. We've run a public benchmark showing that the new code reduces serialization time by 2/3 and deserialization time by close to 50%.
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