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background_job.py

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+#!/usr/bin/python3
+
+from time import sleep
+import psutil
+from plyer import notification
+
+
+def ram_perc():
+    return psutil.virtual_memory()[2]
+
+
+def swap_perc():
+    return psutil.swap_memory()[3]
+
+
+def get_pwmmu():
+    pwmmu = ["", 0, 0]  # pwmmu = Process With Most Memory Usage
+
+    for process in psutil.process_iter():
+        try:
+            process_name = process.name()
+            process_usage = process.memory_info().vms / (1024 * 1024)
+            process_id = process.pid
+
+            if process_usage > pwmmu[1]:
+                pwmmu = [process_name, process_usage, process_id]
+
+        except:
+            pass
+
+    print(pwmmu)
+    return pwmmu
+
+
+def kill_process(process_pid):
+    for process in psutil.process_iter():
+        if process.pid == process_pid:
+            process.kill()
+
+
+def ram_almost_full():
+    notification.notify(
+        title="Your RAM is almost full",
+        message=f"Your RAM usage is over 90%!\nRam usage: {ram_perc()}%\nSwap usage: {swap_perc()}%",
+        timeout=10,
+    )
+
+
+def ram_full():
+    pwmmu = get_pwmmu()
+    kill_process(pwmmu[2])
+
+    notification.notify(
+        title="Your memory is full, killed process with most memory usage.",
+        message=f"Your memory usage was higher than 98%, automatically killed process with most memory usage.\nRam usage: {ram_perc()}%\nSwap usage: {swap_perc()}%\n Killed process: {pwmmu[0]}",
+        timeout=10,
+    )
+
+
+def loop():
+    while True:
+        ram_usage = ram_perc()
+        swap_usage = swap_perc()
+
+        if ram_usage >= 98 and swap_usage >= 98:
+            ram_full()
+
+        elif ram_usage >= 90:
+            ram_almost_full()
+
+
+if __name__ == "__main__":
+    loop()