--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/master/src/wecu/graph_hardware_usage.py	Thu May 28 09:56:42 2020 +0000
@@ -0,0 +1,46 @@
+#!/usr/bin/python
+import  matplotlib
+matplotlib.use('Agg')
+import  matplotlib.pyplot  as  plt
+
+HOSTS_PATH = 'hosts'
+
+def get_hosts():
+    hosts = set()
+    with open(HOSTS_PATH, 'r') as hosts_f:
+        for line in hosts_f:
+            if line.strip() != '':
+                hosts.add(line)
+    return hosts
+
+def get_data_for_host(host):
+    data = []
+    with open(host + '.usage.txt') as f:
+        for line in f:
+            val = float(line.strip())
+            data.append(float(val))
+    return data
+
+def generate_hardware_graph(output_filepath):
+    # MAIN
+    hosts = get_hosts()
+
+    # Common
+    plt.rcParams.update({'font.size': 20})
+    fig, axes = plt.subplots(len(hosts), 1, figsize=(12.1, len(hosts) * 6.2), sharex=False)
+
+    i = 0
+    for host in hosts:
+        vals = axes[i].get_yticks()
+        axes[i].set_yticklabels(['{:,.0%}'.format(x) for x in vals])
+        axes[i].set_ylabel("Utilisation")
+
+        axes[i].plot(get_data_for_host(host.strip()))
+        axes[i].set_ylim([0, 105])
+
+        i += 1
+
+    axes[0].set_title("CPU usage")
+    axes[len(hosts) - 1].set_xlabel("Time [seconds]")
+
+    plt.savefig(output_filepath, dpi=300, pad_inches = 0.1,  bbox_inches = 'tight',)
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