jturkel opened a new pull request #1037:
URL: https://github.com/apache/avro/pull/1037
This optimizes several bottlenecks when encoding unions in the Avro Ruby
library:
1) Validation calls repeatedly allocate constant hashes
2) Validation calls repeatedly allocate constant strings
3) Validation calls are expensive and can be avoided when determining
of a datum matches a null union member type (a common pattern for
"optional" fields)
Optimizing these codepaths reduces memory allocations by 78% and
improves throughput 1.9X in our encoding benchmarks.
Note: Encoding unions is still expensive because the code must
determine which member of the union a datum is targeting. Allowing
clients to explicitly specify this would speed up serialization even
further but that requires a larger API change.
/cc @tjwp
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