fn add_benchmark()

in arrow/benches/concatenate_kernel.rs [39:181]
126 lines of code
19 McCabe index (conditional complexity)

fn add_benchmark(c: &mut Criterion) {
    let v1 = create_primitive_array::<Int32Type>(1024, 0.0);
    let v2 = create_primitive_array::<Int32Type>(1024, 0.0);
    c.bench_function("concat i32 1024", |b| b.iter(|| bench_concat(&v1, &v2)));

    let v1 = create_primitive_array::<Int32Type>(1024, 0.5);
    let v2 = create_primitive_array::<Int32Type>(1024, 0.5);
    c.bench_function("concat i32 nulls 1024", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });

    let small_array = create_primitive_array::<Int32Type>(4, 0.0);
    let arrays: Vec<_> = (0..1024).map(|_| &small_array as &dyn Array).collect();
    c.bench_function("concat 1024 arrays i32 4", |b| {
        b.iter(|| bench_concat_arrays(&arrays))
    });

    {
        let input = (0..100)
            .map(|_| create_primitive_array::<Int32Type>(8192, 0.0))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat i32 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    {
        let input = (0..100)
            .map(|_| create_primitive_array::<Int32Type>(8192, 0.5))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat i32 nulls 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    let v1 = create_boolean_array(1024, 0.0, 0.5);
    let v2 = create_boolean_array(1024, 0.0, 0.5);
    c.bench_function("concat boolean 1024", |b| b.iter(|| bench_concat(&v1, &v2)));

    let v1 = create_boolean_array(1024, 0.5, 0.5);
    let v2 = create_boolean_array(1024, 0.5, 0.5);
    c.bench_function("concat boolean nulls 1024", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });

    let small_array = create_boolean_array(4, 0.0, 0.5);
    let arrays: Vec<_> = (0..1024).map(|_| &small_array as &dyn Array).collect();
    c.bench_function("concat 1024 arrays boolean 4", |b| {
        b.iter(|| bench_concat_arrays(&arrays))
    });

    {
        let input = (0..100)
            .map(|_| create_boolean_array(8192, 0.0, 0.5))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat boolean 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    {
        let input = (0..100)
            .map(|_| create_boolean_array(8192, 0.5, 0.5))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat boolean nulls 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    let v1 = create_string_array::<i32>(1024, 0.0);
    let v2 = create_string_array::<i32>(1024, 0.0);
    c.bench_function("concat str 1024", |b| b.iter(|| bench_concat(&v1, &v2)));

    let v1 = create_string_array::<i32>(1024, 0.5);
    let v2 = create_string_array::<i32>(1024, 0.5);
    c.bench_function("concat str nulls 1024", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });

    let small_array = create_string_array::<i32>(4, 0.0);
    let arrays: Vec<_> = (0..1024).map(|_| &small_array as &dyn Array).collect();
    c.bench_function("concat 1024 arrays str 4", |b| {
        b.iter(|| bench_concat_arrays(&arrays))
    });

    {
        let input = (0..100)
            .map(|_| create_string_array::<i32>(8192, 0.0))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat str 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    {
        let input = (0..100)
            .map(|_| create_string_array::<i32>(8192, 0.5))
            .collect::<Vec<_>>();
        let arrays: Vec<_> = input.iter().map(|arr| arr as &dyn Array).collect();
        c.bench_function("concat str nulls 8192 over 100 arrays", |b| {
            b.iter(|| bench_concat_arrays(&arrays))
        });
    }

    let v1 = create_string_array_with_len::<i32>(10, 0.0, 20);
    let v1 = create_dict_from_values::<Int32Type>(1024, 0.0, &v1);
    let v2 = create_string_array_with_len::<i32>(10, 0.0, 20);
    let v2 = create_dict_from_values::<Int32Type>(1024, 0.0, &v2);
    c.bench_function("concat str_dict 1024", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });

    let v1 = create_string_array_with_len::<i32>(1024, 0.0, 20);
    let v1 = create_sparse_dict_from_values::<Int32Type>(1024, 0.0, &v1, 10..20);
    let v2 = create_string_array_with_len::<i32>(1024, 0.0, 20);
    let v2 = create_sparse_dict_from_values::<Int32Type>(1024, 0.0, &v2, 30..40);
    c.bench_function("concat str_dict_sparse 1024", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });

    let v1 = FixedSizeListArray::try_new(
        Arc::new(Field::new_list_field(DataType::Int32, true)),
        1024,
        Arc::new(create_primitive_array::<Int32Type>(1024 * 1024, 0.0)),
        None,
    )
    .unwrap();
    let v2 = FixedSizeListArray::try_new(
        Arc::new(Field::new_list_field(DataType::Int32, true)),
        1024,
        Arc::new(create_primitive_array::<Int32Type>(1024 * 1024, 0.0)),
        None,
    )
    .unwrap();
    c.bench_function("concat fixed size lists", |b| {
        b.iter(|| bench_concat(&v1, &v2))
    });
}