diff --git a/docs/viewperf.html b/docs/viewperf.html
index 1005eae..2796250 100644
--- a/docs/viewperf.html
+++ b/docs/viewperf.html
@@ -32,6 +32,10 @@
 they'll be fixed in the future.
 </p>
 
+<p>
+Some of the Viewperf tests use a lot of memory.
+At least 2GB of RAM is recommended.
+</p>
 
 
 <h2>Catia-03 test 2</h2>