Update deployment docs with minimum requirements

- Add minimum CPU and Memory Requirements for NCMP to the
  deployment documentation, for both 20K and 50K use-cases.
- Updated recommended heap allocation to 70%, based on
  analysis of JVM Process Memory metric in Grafana.

Issue-ID: CPS-2584
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Idb056eabf7529f1bc2288a3e07975f080f413c3f

diff --git a/docs/deployment.rst b/docs/deployment.rst
index 2af0dd0..840ab8e 100644 (file)
--- a/docs/deployment.rst
+++ b/docs/deployment.rst
@@ -22,14 +22,24 @@ set appropriately. For example, given a database with 2GB of memory, 512MB is a
 CPS and NCMP Configuration
 ==========================
 
+CPU and Memory Requirements
+---------------------------
+
+The following are minimum requirements for NCMP:
+
+* For 20,000 CM-handles: 2 CPUs and 2 GB RAM per instance, with 70% heap allocation.
+* For 50,000 CM-handles: 3 CPUs and 3 GB RAM per instance, with 70% heap allocation.
+
 JVM Memory Allocation
+^^^^^^^^^^^^^^^^^^^^^
 
-Allocating 75% of the container's memory to the JVM heap ensures efficient memory management.
-This helps the JVM make the best use of the allocated resources while leaving enough memory for other processes.
+When running with 2 GB or more memory per instance, allocating 70% of the JVM memory to the heap ensures efficient
+memory management. It is not recommended to go above 70%.
 
 .. code-block:: yaml
 
-    JAVA_TOOL_OPTIONS: "-XX:InitialRAMPercentage=75.0 -XX:MaxRAMPercentage=75.0"
+    JAVA_TOOL_OPTIONS: "-XX:InitialRAMPercentage=70.0 -XX:MaxRAMPercentage=70.0"
+
 
 Load balancer configuration
 ===========================