mirror of
https://github.com/sunnypilot/sunnypilot.git
synced 2026-07-17 15:02:06 +08:00
Adeeb Shihadeh
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
class LinuxSystemStats:
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def __init__(self) -> None:
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self._last_cpu_times = self._read_cpu_times()
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@staticmethod
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def _read_cpu_times() -> dict[int, tuple[int, int]]:
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cpu_times = {}
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with open('/proc/stat') as f:
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for line in f:
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name, *values = line.split()
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if not name.startswith('cpu') or not name[3:].isdigit():
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continue
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times = [int(value) for value in values]
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idle = sum(times[3:5])
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total = sum(times[:8])
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cpu_times[int(name[3:])] = (idle, total)
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return cpu_times
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def cpu_usage_percent(self) -> list[float]:
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current_cpu_times = self._read_cpu_times()
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usage = []
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for cpu, (idle, total) in sorted(current_cpu_times.items()):
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last_times = self._last_cpu_times.get(cpu)
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if last_times is None:
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usage.append(0.)
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continue
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last_idle, last_total = last_times
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idle_delta = idle - last_idle
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total_delta = total - last_total
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if idle_delta < 0 or total_delta <= 0:
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usage.append(0.)
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else:
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usage.append(max(0., min(100., 100. * (total_delta - idle_delta) / total_delta)))
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self._last_cpu_times = current_cpu_times
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return usage
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@staticmethod
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def memory_usage_percent() -> float:
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memory = {}
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with open('/proc/meminfo') as f:
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for line in f:
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key, value, *_ = line.split()
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if key in ('MemTotal:', 'MemAvailable:'):
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memory[key] = int(value)
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total = memory['MemTotal:']
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return max(0., min(100., 100. * (total - memory['MemAvailable:']) / total))
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