CpuLoadTrigger: support low threshold instead of cooldown period

cpu_governor_auto_adjust/triggers/cpu_load.py

@@ -2,33 +2,43 @@ from cpu_governor_auto_adjust.trigger import Trigger
 from cpu_governor_auto_adjust.config import Config
 from functools import cached_property
 from os import getloadavg
-from datetime import datetime, timedelta
 
 
 class CpuLoadTrigger(Trigger):
     def __init__(self, _config: Config) -> None:
         super().__init__(_config)
-        self.timestamp_last_governor_change = datetime.now() - timedelta(minutes=self.cooldown_period_in_minutes + 1)
         
     @cached_property
-    def one_minute_load_threshold(self) -> float:
-        return float(self.config.custom_config['oneMinuteLoadThreshold'])
+    def one_minute_high_threshold(self) -> float:
+        return float(self.config.custom_config['oneMinuteHighThreshold'])
     
     @cached_property
-    def five_minute_load_threshold(self) -> float:
-        return float(self.config.custom_config['fiveMinuteLoadThreshold'])
+    def five_minute_high_threshold(self) -> float:
+        return float(self.config.custom_config['fiveMinuteHighThreshold'])
     
     @cached_property
-    def ten_minute_load_threshold(self) -> float:
-        return float(self.config.custom_config['tenMinuteLoadThreshold'])
+    def ten_minute_high_threshold(self) -> float:
+        return float(self.config.custom_config['tenMinuteHighThreshold'])
     
     @cached_property
-    def threshold(self) -> tuple[float, float, float]:
-        return self.one_minute_load_threshold, self.five_minute_load_threshold, self.ten_minute_load_threshold
+    def high_threshold(self) -> tuple[float, float, float]:
+        return self.one_minute_high_threshold, self.five_minute_high_threshold, self.ten_minute_high_threshold
     
     @cached_property
-    def cooldown_period_in_minutes(self) -> float:
-        return float(self.config.custom_config['cooldownPeriodInMinutes'])
+    def one_minute_low_threshold(self) -> float:
+        return float(self.config.custom_config['oneMinuteLowThreshold'])
+    
+    @cached_property
+    def five_minute_low_threshold(self) -> float:
+        return float(self.config.custom_config['fiveMinuteLowThreshold'])
+    
+    @cached_property
+    def ten_minute_low_threshold(self) -> float:
+        return float(self.config.custom_config['tenMinuteLowThreshold'])
+    
+    @cached_property
+    def low_threshold(self) -> tuple[float, float, float]:
+        return self.one_minute_low_threshold, self.five_minute_low_threshold, self.ten_minute_low_threshold
         
     @property
     def current_load(self) -> tuple[float, float, float]:
@@ -36,35 +46,37 @@ class CpuLoadTrigger(Trigger):
         self.log.debug("current load: %s", _current_load)
         return _current_load
     
-    def current_load_average_over_threshold(self) -> bool:
-        return any(load >= threshold for load, threshold in zip(self.current_load, self.threshold))
+    @property
+    def current_load_average_over_high_threshold(self) -> bool:
+        return any(load >= threshold for load, threshold in zip(self.current_load, self.high_threshold))
+    
+    @property
+    def current_load_average_over_under_threshold(self) -> bool:
+        return any(load <= threshold for load, threshold in zip(self.current_load, self.low_threshold))
     
     def run(self) -> None:
         current_active = self.active
-        current_time = datetime.now()
-        new_active = self.current_load_average_over_threshold()
+        new_high_load_active = self.current_load_average_over_high_threshold
+        new_low_load_active = self.current_load_average_over_under_threshold
         
-        if not current_active and new_active:
+        if not current_active and new_high_load_active:
             self.log.info(
-                "activating trigger, load: %s, threshold: %s, governor: %s", 
-                self.current_load, self.threshold, self.governor.name
+                "activating trigger, load: %s, high threshold: %s, governor: %s", 
+                self.current_load, self.high_threshold, self.governor.name
             )
-            self.timestamp_last_governor_change = current_time
+            self.active = True
             
-        elif current_active and new_active:
-            self.log.debug("trigger is already active, load: %s, threshold: %s", self.current_load, self.threshold)
-            self.timestamp_last_governor_change = current_time
+        elif current_active and new_high_load_active:
+            self.log.debug(
+                "trigger is already active, load: %s, high threshold: %s", 
+                self.current_load, self.high_threshold
+            )
         
-        elif current_active and not new_active:
-            if (current_time - timedelta(minutes=self.cooldown_period_in_minutes)) < self.timestamp_last_governor_change:
-                self.log.debug("cooldown period, staying on governor: %s, current load: %s", self.governor.name, self.current_load)
-                return
-            
+        elif current_active and new_low_load_active:
             self.log.info(
-                "deactivating trigger, load: %s, threshold: %s, governor: %s", 
-                self.current_load, self.threshold, self.governor.name
+                "deactivating trigger, load: %s, low threshold: %s, governor: %s", 
+                self.current_load, self.low_threshold, self.governor.name
             )
+            self.active = False
         else:
-            self.log.debug("trigger is already inactive, load: %s, threshold: %s", self.current_load, self.threshold)
-        
-        self.active = new_active
+            self.log.debug("trigger is already inactive, load: %s, threshold: %s", self.current_load, self.high_threshold)