I ran Linux without swap for some years on a laptop with a large-for-the-time amount of RAM (about 8GB). It _mostly_ worked, but sudden spikes of memory usage would render the system unresponsive. Usually it would recover, but it in some cases it required a power cycle.
Similarly, on a server where you might expect most of the physical memory to get used, it ends up being very important for stability. Think of VM or container hosts in particular.
Similarly, on a server where you might expect most of the physical memory to get used, it ends up being very important for stability. Think of VM or container hosts in particular.