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Add Parquet RowSelection benchmark (#6623)
* add benchmark * add and_then benchmark * fix ci * update bench
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// Licensed to the Apache Software Foundation (ASF) under one | ||
// or more contributor license agreements. See the NOTICE file | ||
// distributed with this work for additional information | ||
// regarding copyright ownership. The ASF licenses this file | ||
// to you under the Apache License, Version 2.0 (the | ||
// "License"); you may not use this file except in compliance | ||
// with the License. You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, | ||
// software distributed under the License is distributed on an | ||
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
// KIND, either express or implied. See the License for the | ||
// specific language governing permissions and limitations | ||
// under the License. | ||
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use arrow_array::BooleanArray; | ||
use criterion::*; | ||
use parquet::arrow::arrow_reader::RowSelection; | ||
use rand::Rng; | ||
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/// Generates a random RowSelection with a specified selection ratio. | ||
/// | ||
/// # Arguments | ||
/// | ||
/// * `total_rows` - The total number of rows in the selection. | ||
/// * `selection_ratio` - The ratio of rows to select (e.g., 1/3 for ~33% selection). | ||
/// | ||
/// # Returns | ||
/// | ||
/// * A `BooleanArray` instance with randomly selected rows based on the provided ratio. | ||
fn generate_random_row_selection(total_rows: usize, selection_ratio: f64) -> BooleanArray { | ||
let mut rng = rand::thread_rng(); | ||
let bools: Vec<bool> = (0..total_rows) | ||
.map(|_| rng.gen_bool(selection_ratio)) | ||
.collect(); | ||
BooleanArray::from(bools) | ||
} | ||
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fn criterion_benchmark(c: &mut Criterion) { | ||
let total_rows = 300_000; | ||
let selection_ratio = 1.0 / 3.0; | ||
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// Generate two random RowSelections with approximately 1/3 of the rows selected. | ||
let row_selection_a = | ||
RowSelection::from_filters(&[generate_random_row_selection(total_rows, selection_ratio)]); | ||
let row_selection_b = | ||
RowSelection::from_filters(&[generate_random_row_selection(total_rows, selection_ratio)]); | ||
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// Benchmark the intersection of the two RowSelections. | ||
c.bench_function("intersection", |b| { | ||
b.iter(|| { | ||
let intersection = row_selection_a.intersection(&row_selection_b); | ||
criterion::black_box(intersection); | ||
}) | ||
}); | ||
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c.bench_function("union", |b| { | ||
b.iter(|| { | ||
let union = row_selection_a.union(&row_selection_b); | ||
criterion::black_box(union); | ||
}) | ||
}); | ||
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c.bench_function("from_filters", |b| { | ||
let boolean_array = generate_random_row_selection(total_rows, selection_ratio); | ||
b.iter(|| { | ||
let array = boolean_array.clone(); | ||
let selection = RowSelection::from_filters(&[array]); | ||
criterion::black_box(selection); | ||
}) | ||
}); | ||
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c.bench_function("and_then", |b| { | ||
let selected = row_selection_a.row_count(); | ||
let sub_selection = | ||
RowSelection::from_filters(&[generate_random_row_selection(selected, selection_ratio)]); | ||
b.iter(|| { | ||
let result = row_selection_a.and_then(&sub_selection); | ||
criterion::black_box(result); | ||
}) | ||
}); | ||
} | ||
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criterion_group!(benches, criterion_benchmark); | ||
criterion_main!(benches); |