Add a first benchmark

Cargo.toml

@@ -10,3 +10,10 @@ publish = false
 [dependencies]
 pbkdf2 = "0.12.2"
 sha2 = "0.10.8"
+
+[dev-dependencies]
+criterion = { version = "0.5.1", features = ["html_reports"] }
+
+[[bench]]
+name = "small"
+harness = false

benches/small.rs

@@ -0,0 +1,12 @@
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use rust_job_scheduling::algorithm::*;
+use rust_job_scheduling::data::SMALL;
+
+fn criterion_benchmark(c: &mut Criterion) {
+	c.bench_function("single thread", |b| {
+		b.iter(|| single_thread(black_box(SMALL)))
+	});
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);