diff --git a/benches/encode_benchmark.rs b/benches/encode_benchmark.rs
index ecb4e17..ffb5130 100644
--- a/benches/encode_benchmark.rs
+++ b/benches/encode_benchmark.rs
@@ -2,14 +2,21 @@ use rand::Rng;
 use raptorq::SourceBlockEncoder;
 use std::time::Instant;
 
-const TARGET_TOTAL_BYTES: usize = 100 * 1024 * 1024;
-const SYMBOL_COUNTS: [usize; 11] = [10, 100, 250, 500, 1000, 2000, 4000, 10000, 20000, 40000, 56403];
+const TARGET_TOTAL_BYTES: usize = 128 * 1024 * 1024;
+const SYMBOL_COUNTS: [usize; 10] = [10, 100, 250, 500, 1000, 2000, 5000, 10000, 20000, 50000];
+
+fn black_box(value: u64) {
+    if value == rand::thread_rng().gen() {
+        println!("{}", value);
+    }
+}
 
 fn main() {
-    let mut junk = 0;
+    let mut black_box_value = 0;
+    let symbol_size = 1280;
+    println!("Symbol size: {} bytes", symbol_size);
     for symbol_count in SYMBOL_COUNTS.iter() {
-        let elements = symbol_count * 512;
-        let symbol_size = 512;
+        let elements = symbol_count * symbol_size as usize;
         let mut data: Vec<u8> = vec![0; elements];
         for i in 0..elements {
             data[i] = rand::thread_rng().gen();
@@ -20,7 +27,7 @@ fn main() {
         for _ in 0..iterations {
             let encoder = SourceBlockEncoder::new(1, symbol_size, &data);
             let packets = encoder.repair_packets(0, 1);
-            junk += packets[0].data()[0] as u32;
+            black_box_value += packets[0].data()[0] as u64;
         }
         let elapsed = now.elapsed();
         let elapsed = elapsed.as_secs() as f64 + elapsed.subsec_millis() as f64 * 0.001;
@@ -31,5 +38,5 @@ fn main() {
                  elapsed,
                  throughput);
     }
-    println!("{}", junk);
+    black_box(black_box_value);
 }