comphead commented on code in PR #718:
URL: https://github.com/apache/datafusion-comet/pull/718#discussion_r1700720520
##########
native/core/benches/bit_util.rs:
##########
@@ -159,6 +160,38 @@ fn criterion_benchmark(c: &mut Criterion) {
);
}
+ // trailing_bits
+ for length in (0..=64).step_by(32) {
+ let x = length;
+ group.bench_with_input(
+ BenchmarkId::new("trailing_bits", format!("num_bits_{}", x)),
+ &x,
+ |b, &x| {
+ b.iter(|| trailing_bits(black_box(1234567890), black_box(x)));
+ },
+ );
+ }
+
+ // read_u64
+ group.bench_function("read_u64", |b| {
+ b.iter(|| read_u64(black_box(&[0u8; 8])));
+ });
+
+ // read_u32
+ group.bench_function("read_u32", |b| {
+ b.iter(|| read_u32(black_box(&[0u8; 4])));
+ });
+
+ // get_u32_value
+ group.bench_function("get_u32_value", |b| {
+ b.iter(|| {
+ let mut reader: BitReader = BitReader::new_all(buffer.slice(0));
+ for _ in 0..(buffer.len() * 8 / 31) {
Review Comment:
I would add some comments on magic numbers
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