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Add specialized filter kernels in compute module (up to 10x faster) #1248

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merged 21 commits into from
Feb 9, 2022
Merged

Add specialized filter kernels in compute module (up to 10x faster) #1248

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3a05ebb
Add specialized primitive filter kernels
tustvold Jan 29, 2022
ba5df9b
Filter context
tustvold Jan 30, 2022
f233909
Optimize null buffer construction
tustvold Jan 30, 2022
31d606a
Clippy
tustvold Jan 30, 2022
272e7a6
Benchmark filter construction
tustvold Jan 30, 2022
19cc6ee
Review feedback
tustvold Feb 2, 2022
c5912ef
Specialized string filter
tustvold Feb 2, 2022
3ed6b60
Specialized dictionary filter kernel
tustvold Feb 2, 2022
17f3d80
Use trusted_len_iter
tustvold Feb 3, 2022
63019f3
Review feedback
tustvold Feb 3, 2022
d587a46
Add fuzz filter test
tustvold Feb 3, 2022
3cae739
Clarify selective vs selectivity confusion
tustvold Feb 4, 2022
b4fe5dd
Revert change to MutableBuffer::from_trusted_len_iter_bool
tustvold Feb 4, 2022
3241417
Fix filter_bits offset handling
tustvold Feb 4, 2022
0918e83
Review feedback
tustvold Feb 4, 2022
1e7481a
Use i64 for chunk offset
tustvold Feb 4, 2022
395f6b3
Only optimize filter when filtering multiple columns
tustvold Feb 5, 2022
37fa7f2
Test truncated filter
tustvold Feb 6, 2022
2aa46b0
Review feedback
tustvold Feb 6, 2022
7b4a2f1
Add IterationStrategy::None
tustvold Feb 7, 2022
9fc5fac
Remove selective / selectivity docs confusion
tustvold Feb 7, 2022
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84 changes: 76 additions & 8 deletions arrow/benches/filter_kernels.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,22 +18,22 @@ extern crate arrow;

use std::sync::Arc;

use arrow::compute::{filter_record_batch, Filter};
use arrow::compute::{filter_record_batch, FilterBuilder, FilterPredicate};
use arrow::record_batch::RecordBatch;
use arrow::util::bench_util::*;

use arrow::array::*;
use arrow::compute::{build_filter, filter};
use arrow::datatypes::{Field, Float32Type, Schema, UInt8Type};
use arrow::compute::filter;
use arrow::datatypes::{Field, Float32Type, Int32Type, Schema, UInt8Type};

use criterion::{criterion_group, criterion_main, Criterion};

fn bench_filter(data_array: &dyn Array, filter_array: &BooleanArray) {
criterion::black_box(filter(data_array, filter_array).unwrap());
}

fn bench_built_filter<'a>(filter: &Filter<'a>, data: &impl Array) {
criterion::black_box(filter(data.data()));
fn bench_built_filter(filter: &FilterPredicate, array: &dyn Array) {
criterion::black_box(filter.filter(array).unwrap());
}

fn add_benchmark(c: &mut Criterion) {
Expand All @@ -42,12 +42,24 @@ fn add_benchmark(c: &mut Criterion) {
let dense_filter_array = create_boolean_array(size, 0.0, 1.0 - 1.0 / 1024.0);
let sparse_filter_array = create_boolean_array(size, 0.0, 1.0 / 1024.0);

let filter = build_filter(&filter_array).unwrap();
let dense_filter = build_filter(&dense_filter_array).unwrap();
let sparse_filter = build_filter(&sparse_filter_array).unwrap();
let filter = FilterBuilder::new(&filter_array).optimize().build();
let dense_filter = FilterBuilder::new(&dense_filter_array).optimize().build();
let sparse_filter = FilterBuilder::new(&sparse_filter_array).optimize().build();

let data_array = create_primitive_array::<UInt8Type>(size, 0.0);

c.bench_function("filter optimize", |b| {
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b.iter(|| FilterBuilder::new(&filter_array).optimize().build())
});

c.bench_function("filter optimize high selectivity", |b| {
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b.iter(|| FilterBuilder::new(&dense_filter_array).optimize().build())
});

c.bench_function("filter optimize low selectivity", |b| {
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b.iter(|| FilterBuilder::new(&sparse_filter_array).optimize().build())
});

c.bench_function("filter u8", |b| {
b.iter(|| bench_filter(&data_array, &filter_array))
});
Expand All @@ -68,6 +80,38 @@ fn add_benchmark(c: &mut Criterion) {
b.iter(|| bench_built_filter(&sparse_filter, &data_array))
});

let data_array = create_primitive_array::<Int32Type>(size, 0.0);
c.bench_function("filter i32", |b| {
b.iter(|| bench_filter(&data_array, &filter_array))
});
c.bench_function("filter i32 high selectivity", |b| {
b.iter(|| bench_filter(&data_array, &dense_filter_array))
});
c.bench_function("filter i32 low selectivity", |b| {
b.iter(|| bench_filter(&data_array, &sparse_filter_array))
});

c.bench_function("filter context i32", |b| {
b.iter(|| bench_built_filter(&filter, &data_array))
});
c.bench_function("filter context i32 high selectivity", |b| {
b.iter(|| bench_built_filter(&dense_filter, &data_array))
});
c.bench_function("filter context i32 low selectivity", |b| {
b.iter(|| bench_built_filter(&sparse_filter, &data_array))
});

let data_array = create_primitive_array::<Int32Type>(size, 0.5);
c.bench_function("filter context i32 w NULLs", |b| {
b.iter(|| bench_built_filter(&filter, &data_array))
});
c.bench_function("filter context i32 w NULLs high selectivity", |b| {
b.iter(|| bench_built_filter(&dense_filter, &data_array))
});
c.bench_function("filter context i32 w NULLs low selectivity", |b| {
b.iter(|| bench_built_filter(&sparse_filter, &data_array))
});

let data_array = create_primitive_array::<UInt8Type>(size, 0.5);
c.bench_function("filter context u8 w NULLs", |b| {
b.iter(|| bench_built_filter(&filter, &data_array))
Expand Down Expand Up @@ -104,6 +148,30 @@ fn add_benchmark(c: &mut Criterion) {
b.iter(|| bench_built_filter(&sparse_filter, &data_array))
});

let data_array = create_string_dict_array::<Int32Type>(size, 0.0);
c.bench_function("filter context string dictionary", |b| {
b.iter(|| bench_built_filter(&filter, &data_array))
});
c.bench_function("filter context string dictionary high selectivity", |b| {
b.iter(|| bench_built_filter(&dense_filter, &data_array))
});
c.bench_function("filter context string dictionary low selectivity", |b| {
b.iter(|| bench_built_filter(&sparse_filter, &data_array))
});

let data_array = create_string_dict_array::<Int32Type>(size, 0.5);
c.bench_function("filter context string dictionary w NULLs", |b| {
b.iter(|| bench_built_filter(&filter, &data_array))
});
c.bench_function(
"filter context string dictionary w NULLs high selectivity",
|b| b.iter(|| bench_built_filter(&dense_filter, &data_array)),
);
c.bench_function(
"filter context string dictionary w NULLs low selectivity",
|b| b.iter(|| bench_built_filter(&sparse_filter, &data_array)),
);

let data_array = create_primitive_array::<Float32Type>(size, 0.0);

let field = Field::new("c1", data_array.data_type().clone(), true);
Expand Down
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