Add system monitoring code

Need a way to monitor the system, CPU temp, NVMe temp, etc

monitor/cpuload.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+import os
+import time
+
+class CPULoad:
+    def __init__( self ):
+        self._previousData = self._getRawData()
+        self._names = []
+        for item in self._previousData:
+            self._names.append( item )
+        
+    def _getRawData( self ):
+        result = {}
+        with open( "/proc/stat", "r") as f:
+            allLines = f.readlines()
+            for line in allLines:
+                cpu = line.replace('\t', ' ').strip().split()
+                if (len(cpu[0]) > 3) and (cpu[0][:3] == "cpu"):
+                    total = 0
+                    idle  = 0
+                    for i in range( 1, len(cpu)):
+                        total += int(cpu[i])
+                        if i == 4 or i == 5:
+                            idle += int(cpu[i])
+                    result[cpu[0]] = (total,idle)
+        return result
+
+    def getPercentages( self ):
+        results = {}
+        current = self._getRawData()
+        for item in current:
+            total = current[item][0] - self._previousData[item][0]
+            idle  = current[item][1] - self._previousData[item][1]
+            percent = ((total - idle)/total) * 100
+            results[item] = percent
+        self._previousData = current
+        return results
+    
+    @property
+    def cpuNames( self ):
+        return self._names
+    
+    def __len__(self):
+        return len(self._previousData)
+
+if __name__ == "__main__":
+    load = CPULoad()
+    print( f"Number of CPU's = {len(load)}" )
+    while True:
+        time.sleep( 1 )
+        percentage = load.getPercentages()
+        for item in percentage:
+            print( f"{item} : {percentage[item]:.02f}" )