diff --git a/app/src/main/java/de/uni_marburg/powersort/benchmark/Main.java b/app/src/main/java/de/uni_marburg/powersort/benchmark/Main.java
index 517e6f6..c70bfcc 100644
--- a/app/src/main/java/de/uni_marburg/powersort/benchmark/Main.java
+++ b/app/src/main/java/de/uni_marburg/powersort/benchmark/Main.java
@@ -22,6 +22,7 @@ public class Main {
             for (SortEnum sortImplementation : sortImplementations) {
                 Object[] sortInput = objectSupplier.getCopy();
 
+                // TODO: JVM warmup!
                 final long startNanos = System.nanoTime();
                 sortImplementation.get().sort(sortInput);
                 final long stopNanos = System.nanoTime();