71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
#!/usr/bin/env python3
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from re import findall
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from subprocess import check_output
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from sys import exit
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ITERATIONS = 10
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try:
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top_output = None
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top_output = check_output(rf"top -b -n{ITERATIONS} -d1 | grep -i '^%cpu'", shell=True).decode('UTF-8')
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cpu_usage = {}
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for value, identifier in findall(r'([0-9\.\,]{3,5}) ([a-z]{2})', top_output):
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if identifier not in cpu_usage:
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cpu_usage[identifier] = 0.0
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cpu_usage[identifier] += float(value.replace(',', '.'))
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output = []
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for identifier, value_added in cpu_usage.items():
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value = value_added / ITERATIONS
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output.append(f"{value:.2f} {identifier}")
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cpu_usage[identifier] = value
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print(f"Average over {ITERATIONS} seconds: " + ", ".join(output))
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warn = set()
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crit = set()
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# steal
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if cpu_usage['st'] > 10:
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crit.add('CPU steal is {}% (>10%)'.format(cpu_usage['st']))
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elif cpu_usage['st'] > 5:
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warn.add('CPU steal is {}% (>5%)'.format(cpu_usage['st']))
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# iowait
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if cpu_usage['wa'] > 60:
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crit.add('IOwait is {}% (>60%)'.format(cpu_usage['wa']))
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elif cpu_usage['wa'] > 30:
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warn.add('IOwait is {}% (>30%)'.format(cpu_usage['wa']))
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total_usage = cpu_usage['us'] + cpu_usage['sy']
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if total_usage > 90:
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crit.add('Total CPU usage is {:.1f}% ({}% user, {}% system, >90%)'.format(
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total_usage,
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cpu_usage['us'],
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cpu_usage['sy'],
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))
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elif total_usage > 80:
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warn.add('Total CPU usage is {:.1f}% ({}% user, {}% system > 80%)'.format(
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total_usage,
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cpu_usage['us'],
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cpu_usage['sy'],
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))
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for line in sorted(crit):
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print(line)
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for line in sorted(warn):
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print(line)
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if crit:
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exit(2)
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elif warn:
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exit(1)
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else:
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exit(0)
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except Exception as e:
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print(repr(e))
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exit(3)
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