diff --git a/docs/source/metrics.rst b/docs/source/metrics.rst
index 129568668b338c2a676a4f4ef95428a3a18a4e60..7ee80e5980d8b975010c1a15c6b92a5eeeefad43 100644
--- a/docs/source/metrics.rst
+++ b/docs/source/metrics.rst
@@ -61,6 +61,11 @@ Here are five optional arguments for metrics you can use when running the 'exec'
 
    It prints the global memory and CPU usage for the selected application.
 
+.. Note::
+   
+   You must run the benchmark as root or adjust paranoid value to use the resource usage metric.
+   
+
 
 Dinamically Selecting Performance Metrics
 -----------------------------------------