Java: Improve BinaryEncoder Performance
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Key: AVRO-753
URL: https://issues.apache.org/jira/browse/AVRO-753
Project: Avro
Issue Type: Improvement
Components: java
Reporter: Scott Carey
Assignee: Scott Carey
Fix For: 1.5.0
BinaryEncoder has not had a performance improvement pass like BinaryDecoder
did. It still mostly writes directly to the underlying OutputStream which is
not optimal for performance. I like to use a rule that if you are writing to
an OutputStream or reading from an InputStream in chunks smaller than 128
bytes, you have a performance problem.
Measurements indicate that optimizing BinaryEncoder yields a 2.5x to 6x
performance improvement. The process is significantly simpler than
BinaryDecoder because 'pushing' is easier than 'pulling' -- and also because we
do not need a 'direct' variant because BinaryEncoder already buffers sometimes.
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