don't overcommit your hypervisor

Author: kalexand-rh

scalability_and_performance/optimizing-compute-resources.adoc

@@ -18,6 +18,12 @@ Requests and limits enable administrators to allow and manage the overcommitment
 of resources on a node, which may be desirable in development environments where
 a tradeoff of guaranteed performance for capacity is acceptable.
 
+[IMPORTANT]
+====
+To avoid erratic cluster behavior due to scheduling collisions between the
+hypervisor and Kubernetes, do not overcommit at the hypervisor level.
+====
+
 include::modules/using-a-pre-deployed-image-to-improve-efficiency.adoc[leveloffset=+1]
 
 include::modules/debugging-issues-with-rhel-tools.adoc[leveloffset=+1]