gcode预览测试

utils/auto_fan_status.py

@@ -5,6 +5,7 @@ from PyQt6.QtCore import QTimer
 class AutoFanStatus:
     def __init__(self, update_interval_ms=1000):
         self.cpu_temp = 0.0
+        self.cpu_load = 0.0  # 1 分钟 CPU 负载
         self.fan_speed = 0
         self.fan_state = "Unknown"
         self.fan_rpm = 0
@@ -37,4 +38,12 @@ class AutoFanStatus:
             self.fan_speed = 0
             self.fan_state = "Unknown"
             self.fan_rpm = 0
-            self.is_auto_fan_service_running = False
+            self.is_auto_fan_service_running = False
+
+        # 读取 CPU 负载（始终执行）
+        try:
+            with open("/proc/loadavg", "r") as f:
+                fields = f.read().split()
+                self.cpu_load = float(fields[0])  # 1 分钟平均负载
+        except (OSError, IndexError, ValueError):
+            self.cpu_load = 0.0