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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::datatypes::{DataType, Field, Float32Type, Float64Type};
use arrow::util::bench_util::create_primitive_array;
use criterion::{Criterion, SamplingMode, criterion_group, criterion_main};
use datafusion_common::ScalarValue;
use datafusion_common::config::ConfigOptions;
use datafusion_expr::{ColumnarValue, ScalarFunctionArgs};
use datafusion_functions::math::round;
use std::hint::black_box;
use std::sync::Arc;
use std::time::Duration;
fn criterion_benchmark(c: &mut Criterion) {
let round_fn = round();
let config_options = Arc::new(ConfigOptions::default());
for size in [1024, 4096, 8192] {
let mut group = c.benchmark_group(format!("round size={size}"));
group.sampling_mode(SamplingMode::Flat);
group.sample_size(10);
group.measurement_time(Duration::from_secs(10));
// Float64 array benchmark
let f64_array = Arc::new(create_primitive_array::<Float64Type>(size, 0.1));
let batch_len = f64_array.len();
let f64_args = vec![
ColumnarValue::Array(f64_array),
ColumnarValue::Scalar(ScalarValue::Int32(Some(2))),
];
group.bench_function("round_f64_array", |b| {
b.iter(|| {
let args_cloned = f64_args.clone();
black_box(
round_fn
.invoke_with_args(ScalarFunctionArgs {
args: args_cloned,
arg_fields: vec![
Field::new("a", DataType::Float64, true).into(),
Field::new("b", DataType::Int32, false).into(),
],
number_rows: batch_len,
return_field: Field::new("f", DataType::Float64, true).into(),
config_options: Arc::clone(&config_options),
})
.unwrap(),
)
})
});
// Float32 array benchmark
let f32_array = Arc::new(create_primitive_array::<Float32Type>(size, 0.1));
let f32_args = vec![
ColumnarValue::Array(f32_array),
ColumnarValue::Scalar(ScalarValue::Int32(Some(2))),
];
group.bench_function("round_f32_array", |b| {
b.iter(|| {
let args_cloned = f32_args.clone();
black_box(
round_fn
.invoke_with_args(ScalarFunctionArgs {
args: args_cloned,
arg_fields: vec![
Field::new("a", DataType::Float32, true).into(),
Field::new("b", DataType::Int32, false).into(),
],
number_rows: batch_len,
return_field: Field::new("f", DataType::Float32, true).into(),
config_options: Arc::clone(&config_options),
})
.unwrap(),
)
})
});
// Scalar benchmark (the optimization we added)
let scalar_f64_args = vec![
ColumnarValue::Scalar(ScalarValue::Float64(Some(std::f64::consts::PI))),
ColumnarValue::Scalar(ScalarValue::Int32(Some(2))),
];
group.bench_function("round_f64_scalar", |b| {
b.iter(|| {
let args_cloned = scalar_f64_args.clone();
black_box(
round_fn
.invoke_with_args(ScalarFunctionArgs {
args: args_cloned,
arg_fields: vec![
Field::new("a", DataType::Float64, false).into(),
Field::new("b", DataType::Int32, false).into(),
],
number_rows: 1,
return_field: Field::new("f", DataType::Float64, false)
.into(),
config_options: Arc::clone(&config_options),
})
.unwrap(),
)
})
});
let scalar_f32_args = vec![
ColumnarValue::Scalar(ScalarValue::Float32(Some(std::f32::consts::PI))),
ColumnarValue::Scalar(ScalarValue::Int32(Some(2))),
];
group.bench_function("round_f32_scalar", |b| {
b.iter(|| {
let args_cloned = scalar_f32_args.clone();
black_box(
round_fn
.invoke_with_args(ScalarFunctionArgs {
args: args_cloned,
arg_fields: vec![
Field::new("a", DataType::Float32, false).into(),
Field::new("b", DataType::Int32, false).into(),
],
number_rows: 1,
return_field: Field::new("f", DataType::Float32, false)
.into(),
config_options: Arc::clone(&config_options),
})
.unwrap(),
)
})
});
group.finish();
}
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);