diff --git a/src/main.rs b/src/main.rs
index 21064af..fd034bc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,8 +14,8 @@ mod plot;
 
 const THREAD_CNT: usize = 8;
 const SAMPLE_LIMIT: usize = 1_000_000_000;
-const SUB_SAMPLES: Vec<usize> = vec![1, 2, 5];
-const SAMPLES_PER_ITERATION: usize = 1;
+const SUB_SAMPLES: [usize; 3] = [1, 2, 5];
+const SAMPLES_PER_ITERATION: usize = 10;
 
 fn main() {
     let bounds: Bounds = Bounds::new(LinearBounds::new(0_f64, 20_f64), LinearBounds::new(-100_f64, 150000_f64));
@@ -27,15 +27,18 @@ fn main() {
     while sample_cnt < SAMPLE_LIMIT {
         for sub_sample in SUB_SAMPLES.clone() {
             let samples: usize = sub_sample * sample_cnt;
-            for _ in 0..SAMPLES_PER_ITERATION {
+            for sample in 0..SAMPLES_PER_ITERATION {
                 result.add_sample(samples, func.approximate(&bounds, samples, THREAD_CNT));
+                let progress: usize = (((sample + 1) as f64 / SAMPLES_PER_ITERATION as f64) * 25.0) as usize;
+                eprint!("\r{:12} [{}{}]", samples, "|".repeat(progress), " ".repeat(25 - progress));
             }
+            println!();
         }
         sample_cnt *= 10;
     }
     result.print();
 
-    let mut file: io::Result<File> = File::create("output.json");
+    let file: io::Result<File> = File::create("output.json");
     if file.is_err() {
         panic!("Error creating output file")
     }