Crash Protector
When there are too many props or entities colliding making the game lag, it ejects them while temporarily removing collisions, thus preventing any crashes.
Also, you can see your server’s load when pressing TAB in the upper right.
If you have issues with entities or just don’t want to detect them, you can make it so that it only works on props using "crash_protector_entities 0".
For extra protection, put "crash_protector_extra 1" in the console so that when the server is on the verge of crashing, it’ll delete the 10 last entities including props. May not work every time.
It’s very simple and it works 🙂