Vivek Nadkarni created AVRO-1089:
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Summary: Avro-C - Penalty 30x to 50x for using resolved writer on
arrays
Key: AVRO-1089
URL: https://issues.apache.org/jira/browse/AVRO-1089
Project: Avro
Issue Type: Bug
Components: c
Affects Versions: 1.6.3, 1.7.0
Environment: Ubuntu Linux
Reporter: Vivek Nadkarni
Fix For: 1.7.0
The new performance tests created in AVRO-1088 show that using the
resolved writer takes 30 to 50 times longer than using no schema
resolution or using the resolved reader for simple and nested arrays.
For a simple array, using the resolved writer took ~30x longer than
using the memory reader that assumed a matching schema. For the nested
array, using the resolved writer took ~50x longer.
These results suggest that there is a bug in resolved writer. I do not
have a proposed fix at this time.
**** Running simple array matched schemas ****
250000 tests per run
Run 1
Run 2
Run 3
Average time: 2.123s
Tests/sec: 117739
**** Running simple array resolved writer ****
10000 tests per run
Run 1
Run 2
Run 3
Average time: 2.747s
Tests/sec: 3641
**** Running nested array matched schemas ****
250000 tests per run
Run 1
Run 2
Run 3
Average time: 3.030s
Tests/sec: 82508
**** Running nested array resolved writer ****
10000 tests per run
Run 1
Run 2
Run 3
Average time: 6.650s
Tests/sec: 1504
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