reduce number of different entity counts

Author: NathanSWard

benches/benches/bevy_ecs/commands.rs

@@ -39,7 +39,7 @@ fn spawning_commands(criterion: &mut Criterion) {
     group.warm_up_time(std::time::Duration::from_millis(500));
     group.measurement_time(std::time::Duration::from_secs(3));
 
-    for i in 1..10 {
+    for i in (1..5).map(|i| i * 2) {
         let entity_count = i * 1000;
 
         group.bench_function(format!("spawn_{}_entities", entity_count), |bencher| {
@@ -65,7 +65,7 @@ fn rng_spawning_commands(criterion: &mut Criterion) {
     group.warm_up_time(std::time::Duration::from_millis(500));
     group.measurement_time(std::time::Duration::from_secs(3));
 
-    for i in 1..10 {
+    for i in (1..5).map(|i| i * 2) {
         let entity_count = i * 1000;
 
         group.bench_function(format!("spawn_{}_entities_rng", entity_count), |bencher| {