Yanfei Lei created FLINK-23399:
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Summary: Add a benchmark for rescaling
Key: FLINK-23399
URL: https://issues.apache.org/jira/browse/FLINK-23399
Project: Flink
Issue Type: Improvement
Components: Runtime / State Backends
Affects Versions: 1.14.0
Reporter: Yanfei Lei
We notice that rescaling is not covered in the current state benchmark, so we'd
like to introduce a benchmark for rescaling in flink-benchmark.
The benchmark process is:
(1) generate some states,
(2) change the parallelism of the operator, and restore from these states
generate before.
The implementation of this benchmark is based on
{{RocksIncrementalCheckpointRescalingTest}}, and *_AverageTime_* is used to
measure the rescaling performance on each subtask.
And this benchmark does not conflict with
RocksIncrementalCheckpointRescalingBenchmarkTest in
[PR|[https://github.com/apache/flink/pull/14893]]. Compare with
RocksIncrementalCheckpointRescalingBenchmarkTest, this benchmark supports
testing rescaling on different state backends, and has a finer granularity.
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