sunnypilot v2026.003.000

version: sunnypilot v2026.003.000 (staging)
date: 2026-09-03T14:24:40
master commit: 132b31f4cf

openpilot/common/linux.py

@@ -0,0 +1,50 @@
+class LinuxSystemStats:
+  def __init__(self) -> None:
+    self._last_cpu_times = self._read_cpu_times()
+
+  @staticmethod
+  def _read_cpu_times() -> dict[int, tuple[int, int]]:
+    cpu_times = {}
+    with open('/proc/stat') as f:
+      for line in f:
+        name, *values = line.split()
+        if not name.startswith('cpu') or not name[3:].isdigit():
+          continue
+
+        times = [int(value) for value in values]
+        idle = sum(times[3:5])
+        total = sum(times[:8])
+        cpu_times[int(name[3:])] = (idle, total)
+    return cpu_times
+
+  def cpu_usage_percent(self) -> list[float]:
+    current_cpu_times = self._read_cpu_times()
+    usage = []
+    for cpu, (idle, total) in sorted(current_cpu_times.items()):
+      last_times = self._last_cpu_times.get(cpu)
+      if last_times is None:
+        usage.append(0.)
+        continue
+
+      last_idle, last_total = last_times
+      idle_delta = idle - last_idle
+      total_delta = total - last_total
+      if idle_delta < 0 or total_delta <= 0:
+        usage.append(0.)
+      else:
+        usage.append(max(0., min(100., 100. * (total_delta - idle_delta) / total_delta)))
+
+    self._last_cpu_times = current_cpu_times
+    return usage
+
+  @staticmethod
+  def memory_usage_percent() -> float:
+    memory = {}
+    with open('/proc/meminfo') as f:
+      for line in f:
+        key, value, *_ = line.split()
+        if key in ('MemTotal:', 'MemAvailable:'):
+          memory[key] = int(value)
+
+    total = memory['MemTotal:']
+    return max(0., min(100., 100. * (total - memory['MemAvailable:']) / total))