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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.
use arrow::array::StringRunBuilder;
use arrow::datatypes::Int32Type;
use arrow::util::bench_util::create_string_array_for_runs;
use criterion::{criterion_group, criterion_main, Criterion};
fn criterion_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("string_run_builder");
let mut do_bench = |physical_array_len: usize, logical_array_len: usize, string_len: usize| {
group.bench_function(
format!(
"(run_array_len:{logical_array_len}, physical_array_len:{physical_array_len}, string_len: {string_len})",
),
|b| {
let strings =
create_string_array_for_runs(physical_array_len, logical_array_len, string_len);
b.iter(|| {
let mut builder = StringRunBuilder::<Int32Type>::with_capacity(
physical_array_len,
(string_len + 1) * physical_array_len,
);
for val in &strings {
builder.append_value(val);
}
builder.finish();
})
},
);
};
do_bench(20, 1000, 5);
do_bench(100, 1000, 5);
do_bench(100, 1000, 10);
do_bench(100, 10000, 10);
do_bench(100, 10000, 100);
group.finish();
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);