Add benchmarks and cargo-flamegraph

main
mat ess 2023-04-18 22:05:33 -04:00
parent 6e32657ac0
commit 0e8fcd0390
7 changed files with 746 additions and 5 deletions

2
.gitignore vendored
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@ -2,7 +2,7 @@
/result /result
/target /target
/.pre-commit-config.yaml /.pre-commit-config.yaml
flamegraph.svg
# Added by cargo # Added by cargo
# #

650
Cargo.lock generated
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@ -2,11 +2,298 @@
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View File

@ -7,3 +7,14 @@ edition = "2021"
[dependencies] [dependencies]
nanoserde = "0.1.32" nanoserde = "0.1.32"
[dev-dependencies]
criterion = "0.4.0"
rand = "0.8.5"
[[bench]]
name = "bench_library"
harness = false
[profile.bench]
debug = true

78
benches/bench_library.rs Normal file
View File

@ -0,0 +1,78 @@
use criterion::{criterion_group, criterion_main, Criterion};
use rand::{
distributions::{Alphanumeric, DistString},
thread_rng, Rng,
};
use cover::library::{Artist, Library, Song};
// actual benchmarks
fn bench_random_library(c: &mut Criterion) {
bench_random_library_with_sizes(c, "small", 5, 25);
bench_random_library_with_sizes(c, "medium", 25, 100);
bench_random_library_with_sizes(c, "large", 100, 1000);
bench_random_library_with_sizes(c, "massive", 1000, 2500);
}
fn bench_supermassive_random_library(c: &mut Criterion) {
bench_random_library_with_sizes(c, "supermassive", 2500, 7500);
}
// benchmark helpers
fn bench_random_library_with_sizes(c: &mut Criterion, size: &str, artists: usize, songs: usize) {
let id = format!("{size} random library ({artists} artists x {songs} songs/artist)");
let library = random_library(artists, songs);
c.bench_function(id.as_str(), |b| {
b.iter(|| {
library.library_covers();
})
});
}
// test data generators
fn random_string() -> String {
let mut rng = thread_rng();
let length = rng.gen_range(1..=20);
Alphanumeric.sample_string(&mut rng, length)
}
fn generate_iter<T: Clone>(generator: impl Fn() -> T, length: usize) -> impl Iterator<Item = T> {
let mut ts = Vec::with_capacity(length);
for _ in 0..length {
ts.push(generator())
}
ts.into_iter()
}
fn random_song() -> Song {
Song::new(
random_string(),
random_string(),
generate_iter(random_string, 5),
)
}
fn random_artist(songs: usize) -> Artist {
Artist::new(
random_string(),
generate_iter(random_string, 5),
generate_iter(random_song, songs),
)
}
fn random_library(artists: usize, songs_per_artist: usize) -> Library {
Library::new(generate_iter(|| random_artist(songs_per_artist), artists))
}
// entrypoint
criterion_group!(benches, bench_random_library);
criterion_group! {
name = slow_benches;
config = Criterion::default().sample_size(20);
targets = bench_supermassive_random_library
}
criterion_main!(benches, slow_benches);

View File

@ -57,6 +57,8 @@
rust-analyzer rust-analyzer
# rustfmt # rustfmt
clippy clippy
# profiling
cargo-flamegraph
; ;
rustfmt = pkgs.rustfmt.overrideAttrs (old: { rustfmt = pkgs.rustfmt.overrideAttrs (old: {
preFixup = pkgs.lib.optionalString pkgs.stdenv.isDarwin '' preFixup = pkgs.lib.optionalString pkgs.stdenv.isDarwin ''

View File

@ -26,7 +26,7 @@ impl Library {
}) })
} }
pub fn find_library_covers(&self) -> HashSet<&Song> { pub fn library_covers(&self) -> HashSet<&Song> {
self.all_covers() self.all_covers()
.into_iter() .into_iter()
.filter(|song| song.is_library_cover(self)) .filter(|song| song.is_library_cover(self))
@ -234,7 +234,7 @@ mod tests {
#[test] #[test]
fn test_find_covers() { fn test_find_covers() {
assert!(library().find_library_covers() == [&love_story("black midi")].into()) assert!(library().library_covers() == [&love_story("black midi")].into())
} }
#[test] #[test]
@ -242,7 +242,7 @@ mod tests {
assert!(Library { assert!(Library {
artists: [bon_iver()].into() artists: [bon_iver()].into()
} }
.find_library_covers() .library_covers()
.is_empty()) .is_empty())
} }
} }

View File

@ -11,7 +11,7 @@ fn main() {
let json = fs::read_to_string(file_path).expect("Failed to open library file"); let json = fs::read_to_string(file_path).expect("Failed to open library file");
let library: Library = let library: Library =
DeJson::deserialize_json(&json).expect("Failed to deserialize library file"); DeJson::deserialize_json(&json).expect("Failed to deserialize library file");
for cover in library.find_library_covers() { for cover in library.library_covers() {
println!("Found cover!"); println!("Found cover!");
println!( println!(
"{}, by {:?}, covered by {}", "{}, by {:?}, covered by {}",