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https://issues.apache.org/jira/browse/AVRO-557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-557:
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Attachment: AVRO-557.patch
Okay, here's a winner. This one caches the entire ResolvingDecoder, not just
its resolver.
GenericReaderOneTimeUsageTest: 1793 ms, 2.3228573849749345 million entries/sec.
0.010871407417979413 million bytes/sec
Kevin, can you confirm whether an identity-based cache of schemas works for
your use case? If not, we could try this with an equals-hash and perhaps
optimize Schema#hashCode().
> Speed up one-time data decoding
> -------------------------------
>
> Key: AVRO-557
> URL: https://issues.apache.org/jira/browse/AVRO-557
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.3.2
> Reporter: Kevin Oliver
> Assignee: Kevin Oliver
> Fix For: 1.4.0
>
> Attachments: AVRO-557.patch, AVRO-557.patch, AVRO-557.patch
>
>
> There are big gains to be had in performance when using a BinaryDecoder and a
> GenericDatumReader just one time. This is due to the relatively expensive
> parsing and initialization that came with 1.3. Patch with example code and a
> Perf harness to follow.
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