nushell/crates/nu-plugin/benches/encoder_benchmark.rs

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use criterion::{criterion_group, criterion_main, Criterion};
use nu_plugin::{EncodingType, PluginResponse};
use nu_protocol::{Span, Value};
// generate a new table data with `row_cnt` rows, `col_cnt` columns.
fn new_test_data(row_cnt: usize, col_cnt: usize) -> Value {
let columns: Vec<String> = (0..col_cnt).map(|x| format!("col_{x}")).collect();
let vals: Vec<Value> = (0..col_cnt as i64).map(|i| Value::test_int(i)).collect();
Value::List {
vals: (0..row_cnt)
.map(|_| Value::test_record(columns.clone(), vals.clone()))
.collect(),
span: Span::test_data(),
}
}
fn bench_encoding(c: &mut Criterion) {
let mut group = c.benchmark_group("Encoding");
let test_cnt_pairs = [
(100, 5),
(100, 10),
(100, 15),
(1000, 5),
(1000, 10),
(1000, 15),
(10000, 5),
(10000, 10),
(10000, 15),
];
for (row_cnt, col_cnt) in test_cnt_pairs.into_iter() {
for fmt in ["capnp", "json", "msgpack"] {
group.bench_function(&format!("{fmt} encode {row_cnt} * {col_cnt}"), |b| {
let mut res = vec![];
let test_data = PluginResponse::Value(Box::new(new_test_data(row_cnt, col_cnt)));
let encoder = EncodingType::try_from_bytes(fmt.as_bytes()).unwrap();
b.iter(|| encoder.encode_response(&test_data, &mut res))
});
}
}
group.finish();
}
fn bench_decoding(c: &mut Criterion) {
let mut group = c.benchmark_group("Decoding");
let test_cnt_pairs = [
(100, 5),
(100, 10),
(100, 15),
(1000, 5),
(1000, 10),
(1000, 15),
(10000, 5),
(10000, 10),
(10000, 15),
];
for (row_cnt, col_cnt) in test_cnt_pairs.into_iter() {
for fmt in ["capnp", "json", "msgpack"] {
group.bench_function(&format!("{fmt} decode for {row_cnt} * {col_cnt}"), |b| {
let mut res = vec![];
let test_data = PluginResponse::Value(Box::new(new_test_data(row_cnt, col_cnt)));
let encoder = EncodingType::try_from_bytes(fmt.as_bytes()).unwrap();
encoder.encode_response(&test_data, &mut res).unwrap();
let mut binary_data = std::io::Cursor::new(res);
b.iter(|| {
binary_data.set_position(0);
encoder.decode_response(&mut binary_data)
})
});
}
}
group.finish();
}
criterion_group!(benches, bench_encoding, bench_decoding);
criterion_main!(benches);