Added cpu load to node-cpu hog; Added memory bytes and percentage to node-memory-hog (#544)

Signed-off-by: Akash Shrivastava <as86414@gmail.com>

charts/generic/node-memory-hog/engine.yaml

@@ -18,11 +18,6 @@ spec:
             - name: TOTAL_CHAOS_DURATION
               value: '120'
 
-            ## Specify the size as percent of total node capacity Ex: '30'
-            ## Note: For consuming memory in mebibytes change the variable to MEMORY_CONSUMPTION_MEBIBYTES
-            - name: MEMORY_CONSUMPTION_PERCENTAGE
-              value: '30'
-            
             ## percentage of total nodes to target
             - name: NODES_AFFECTED_PERC
               value: ''
@@ -30,3 +25,13 @@ spec:
             # provide the comma separated target node names
             - name: TARGET_NODES
               value: ''
+            
+            ## Specify the size as percent of total node capacity Ex: '30'
+            ## NOTE: for selecting this option keep MEMORY_CONSUMPTION_MEBIBYTES empty
+            - name: MEMORY_CONSUMPTION_PERCENTAGE
+              value: '0'
+              
+            ## Specify the amount of memory to be consumed in mebibytes
+            ## NOTE: for selecting this option keep MEMORY_CONSUMPTION_PERCENTAGE empty
+            - name: MEMORY_CONSUMPTION_MEBIBYTES
+              value: '0'