93 lines
2.4 KiB
Rust
93 lines
2.4 KiB
Rust
use criterion::{black_box, criterion_group, criterion_main, Bencher, Criterion};
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use pyo3::{
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prelude::*,
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types::{PyList, PyString},
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};
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#[derive(FromPyObject)]
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enum ManyTypes {
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Int(i32),
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Bytes(Vec<u8>),
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String(String),
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}
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fn enum_from_pyobject(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let obj = PyString::new(py, "hello world");
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b.iter(|| {
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let _: ManyTypes = obj.extract().unwrap();
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});
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})
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}
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fn list_via_downcast(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let any: &PyAny = PyList::empty(py).into();
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b.iter(|| {
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let _list: &PyList = black_box(any).downcast().unwrap();
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});
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})
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}
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fn list_via_extract(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let any: &PyAny = PyList::empty(py).into();
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b.iter(|| {
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let _list: &PyList = black_box(any).extract().unwrap();
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});
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})
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}
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fn not_a_list_via_downcast(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let any: &PyAny = PyString::new(py, "foobar").into();
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b.iter(|| {
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black_box(any).downcast::<PyList>().unwrap_err();
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});
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})
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}
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fn not_a_list_via_extract(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let any: &PyAny = PyString::new(py, "foobar").into();
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b.iter(|| {
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black_box(any).extract::<&PyList>().unwrap_err();
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});
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})
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}
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#[derive(FromPyObject)]
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enum ListOrNotList<'a> {
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List(&'a PyList),
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NotList(&'a PyAny),
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}
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fn not_a_list_via_extract_enum(b: &mut Bencher<'_>) {
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Python::with_gil(|py| {
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let any: &PyAny = PyString::new(py, "foobar").into();
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b.iter(|| match black_box(any).extract::<ListOrNotList<'_>>() {
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Ok(ListOrNotList::List(_list)) => panic!(),
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Ok(ListOrNotList::NotList(_any)) => (),
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Err(_) => panic!(),
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});
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})
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}
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fn criterion_benchmark(c: &mut Criterion) {
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c.bench_function("enum_from_pyobject", enum_from_pyobject);
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c.bench_function("list_via_downcast", list_via_downcast);
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c.bench_function("list_via_extract", list_via_extract);
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c.bench_function("not_a_list_via_downcast", not_a_list_via_downcast);
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c.bench_function("not_a_list_via_extract", not_a_list_via_extract);
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c.bench_function("not_a_list_via_extract_enum", not_a_list_via_extract_enum);
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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