gntag/benches/benchmark.rs

use criterion::{BenchmarkId, measurement::Measurement};
use criterion::{criterion_group, criterion_main, Criterion, Throughput, BenchmarkGroup};
use gntag::agent::{Agent, SimpleAgent};
use gntag::world::ActualWorld;

fn world<M: Measurement>(mut group: BenchmarkGroup<M>, validate: bool) {
  let width: isize = 1000;
  for spacing in (50..100).step_by(10) {
    group.throughput(Throughput::Elements((width / spacing).pow(2) as u64));
    group.bench_with_input(
      BenchmarkId::from_parameter(spacing),
      &spacing,
      |b, &spacing| {
        let mut agents: Vec<(_, Box<dyn Agent>)> = vec![];
        for x in (0..width).step_by(spacing as usize) {
          for y in (0..width).step_by(spacing as usize) {
            agents.push(((x, y).into(), Box::new(SimpleAgent)));
          }
        }
        let mut world = ActualWorld::new((width, width).into(), agents, validate);
        b.iter(|| world.do_step());
      },
    );
  }
  group.finish();
}

fn world_validating(c: &mut Criterion) {
  let group = c.benchmark_group("world_validating");
  world(group, true)
}

fn world_nonvalidating(c: &mut Criterion) {
  let group = c.benchmark_group("world_nonvalidating");
  world(group, false)
}

criterion_group!(benches, world_validating, world_nonvalidating);
criterion_main!(benches);

// 5000/1000 ->     9,993
//    5/01 ->      23,252
//   50/10 ->      14,000
//  100/20 ->      14,000
//  100/10 ->      96,000
//  100/05 ->     917,767
//  200/10 ->     916,172
// 1000/10 -> 443,482,526