[Json] Add json reader benchmarks for ListView#9647
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alamb merged 3 commits intoapache:mainfrom Apr 6, 2026
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| fn bench_decode_schema(c: &mut Criterion, name: &str, data: &[u8], schema: Arc<Schema>) { | ||
| let mut group = c.benchmark_group(name); | ||
| group.throughput(Throughput::Bytes(data.len() as u64)); | ||
| group.sample_size(50); | ||
| group.measurement_time(std::time::Duration::from_secs(5)); | ||
| group.warm_up_time(std::time::Duration::from_secs(2)); | ||
| group.sampling_mode(SamplingMode::Flat); | ||
| group.bench_function(BenchmarkId::from_parameter(ROWS), |b| { | ||
| b.iter(|| { | ||
| let mut decoder = ReaderBuilder::new(schema.clone()) | ||
| .with_batch_size(BATCH_SIZE) | ||
| .build_decoder() | ||
| .unwrap(); | ||
| decode_and_flush(&mut decoder, data); | ||
| }) | ||
| }); | ||
| group.finish(); | ||
| } |
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Looks good to me -- thank you @liamzwbao
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… json decoder (#9648) # Which issue does this PR close? <!-- We generally require a GitHub issue to be filed for all bug fixes and enhancements and this helps us generate change logs for our releases. You can link an issue to this PR using the GitHub syntax. --> - Closes #9646. # Rationale for this change <!-- Why are you proposing this change? If this is already explained clearly in the issue then this section is not needed. Explaining clearly why changes are proposed helps reviewers understand your changes and offer better suggestions for fixes. --> # What changes are included in this PR? <!-- There is no need to duplicate the description in the issue here but it is sometimes worth providing a summary of the individual changes in this PR. --> Support `GenericListViewArray::new_unchecked` and refactor ListView json decoder. Stacked on #9497, benchmark added in #9647 # Are these changes tested? <!-- We typically require tests for all PRs in order to: 1. Prevent the code from being accidentally broken by subsequent changes 2. Serve as another way to document the expected behavior of the code If tests are not included in your PR, please explain why (for example, are they covered by existing tests)? --> Covered by existing tests # Are there any user-facing changes? <!-- If there are user-facing changes then we may require documentation to be updated before approving the PR. If there are any breaking changes to public APIs, please call them out. --> No
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Which issue does this PR close?
GenericListViewArray::new_uncheckedand refactor ListView json decoder #9646.Rationale for this change
Add benchmarks for
ListViewJSON decoding to establish a performance baseline before refactoring theListViewdecoder. Also clean up the existing benchmark file to reduce duplication and improve consistency.What changes are included in this PR?
Add ListView bench for json_reader
Are these changes tested?
Yes
Are there any user-facing changes?
No