59 lines
1.3 KiB
Python
59 lines
1.3 KiB
Python
# -*- coding:utf-8 -*-
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from i3pystatus import IntervalModule
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class CpuUsage(IntervalModule):
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"""
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Shows CPU usage.
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The first output will be inacurate
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Linux only
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Available formatters:
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* {usage}
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"""
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format = "{usage:02}%"
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settings = (
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("format", "format string"),
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)
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def init(self):
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self.prev_idle = 0
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self.prev_busy = 0
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self.interval = 1
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def get_usage(self):
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"""
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parses /proc/stat and calcualtes total and busy time
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(more specific USER_HZ see man 5 proc for further informations )
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"""
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with open('/proc/stat', 'r') as file_obj:
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stats = file_obj.readline().strip().split()
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cpu_timings = [int(x) for x in stats[1:]]
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cpu_total = sum(cpu_timings)
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del cpu_timings[3:5]
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cpu_busy = sum(cpu_timings)
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return cpu_total, cpu_busy
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def run(self):
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cpu_total, cpu_busy = self.get_usage()
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diff_cpu_total = cpu_total - self.prev_idle
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diff_cpu_busy = cpu_busy - self.prev_busy
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self.prev_idle = cpu_total
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self.prev_busy = cpu_busy
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cpu_busy_percentage = int(diff_cpu_busy / diff_cpu_total * 100)
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self.output = {
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"full_text": self.format.format(
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usage=cpu_busy_percentage
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)
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}
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