Prints avg_ink_spent_per_micro_second

arbitrator/tools/stylus_benchmark/src/benchmark.rs

@@ -89,11 +89,13 @@ pub fn benchmark(wat_path: PathBuf) -> eyre::Result<()> {
     let compiled_module = compile(&wasm, 2, true, Target::default())?;
 
     let mut durations: Vec<Duration> = Vec::new();
+    let mut ink_spent = Ink(0);
     for i in 0..NUMBER_OF_BENCHMARK_RUNS {
         print!("Run {:?}, ", i);
-        let (duration, ink) = run(compiled_module.clone());
-        durations.push(duration);
-        println!("duration: {:?}, ink: {:?}", duration, ink);
+        let (duration_run, ink_spent_run) = run(compiled_module.clone());
+        durations.push(duration_run);
+        ink_spent = ink_spent_run;
+        println!("duration: {:?}, ink_spent: {:?}", duration_run, ink_spent_run);
     }
 
     // discard top and bottom runs
@@ -102,11 +104,10 @@ pub fn benchmark(wat_path: PathBuf) -> eyre::Result<()> {
     let r = NUMBER_OF_BENCHMARK_RUNS as usize - NUMBER_OF_TOP_AND_BOTTOM_RUNS_TO_DISCARD as usize;
     durations = durations[l..r].to_vec();
 
-    let sum = durations.iter().sum::<Duration>();
-    println!(
-        "Average duration after discarding top and bottom runs: {:?}",
-        sum / (r - l) as u32
-    );
+    let avg_duration = durations.iter().sum::<Duration>() / (r - l) as u32;
+    let avg_ink_spent_per_micro_second = ink_spent.0 / avg_duration.as_micros() as u64;
+    println!("After discarding top and bottom runs: ");
+    println!("avg_duration: {:?}, avg_ink_spent_per_micro_second: {:?}", avg_duration, avg_ink_spent_per_micro_second);
 
     Ok(())
 }