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annotate master/src/wecu/graph_hardware_usage.py @ 58:a3edba8dab11

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author Henry S. Thompson <ht@markup.co.uk>
date Thu, 28 May 2020 09:56:42 +0000
parents master/wecu/graph_hardware_usage.py@ac1a20e627a9
children
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57
ac1a20e627a9 from lukasz git repo 2020-05-26 (see ~/src/wecu), then editted,
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1 #!/usr/bin/python
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2 import matplotlib
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3 matplotlib.use('Agg')
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4 import matplotlib.pyplot as plt
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5
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6 HOSTS_PATH = 'hosts'
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7
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8 def get_hosts():
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9 hosts = set()
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10 with open(HOSTS_PATH, 'r') as hosts_f:
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11 for line in hosts_f:
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12 if line.strip() != '':
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13 hosts.add(line)
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14 return hosts
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15
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16 def get_data_for_host(host):
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17 data = []
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18 with open(host + '.usage.txt') as f:
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19 for line in f:
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20 val = float(line.strip())
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21 data.append(float(val))
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22 return data
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23
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24 def generate_hardware_graph(output_filepath):
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25 # MAIN
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26 hosts = get_hosts()
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27
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28 # Common
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29 plt.rcParams.update({'font.size': 20})
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30 fig, axes = plt.subplots(len(hosts), 1, figsize=(12.1, len(hosts) * 6.2), sharex=False)
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31
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32 i = 0
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33 for host in hosts:
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34 vals = axes[i].get_yticks()
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35 axes[i].set_yticklabels(['{:,.0%}'.format(x) for x in vals])
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36 axes[i].set_ylabel("Utilisation")
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37
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38 axes[i].plot(get_data_for_host(host.strip()))
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39 axes[i].set_ylim([0, 105])
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40
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41 i += 1
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42
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43 axes[0].set_title("CPU usage")
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44 axes[len(hosts) - 1].set_xlabel("Time [seconds]")
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45
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46 plt.savefig(output_filepath, dpi=300, pad_inches = 0.1, bbox_inches = 'tight',)