CachyOS: choose your kernel according to your paranoia or your haste

Published on June 03, 2026 | Translated from Spanish

CachyOS, the Arch Linux-based distribution, offers a buffet of kernels for users to choose from based on their mood or stress level. From the default, which prioritizes raw performance, to the hardened one, designed for those who sleep with one eye open. The tests were conducted on a powerful machine to see if such variety is useful or just a whim of developers with free time.

Linux kernel selection menu in CachyOS terminal interface, multiple kernel options displayed as glowing code blocks, user hand hovering over hardened and performance kernels while a stopwatch and shield icon float nearby, abstract binary data streams flowing from screen into a high-end PC case with visible CPU cooler and RAM sticks, cinematic technical visualization, neon blue and red lighting contrasting on system components, photorealistic engineering render, sharp focus on motherboard traces and kernel list, dramatic shadows emphasizing choice between speed and security

Performance, stability, or security: the technical trio that defines your experience ⚙️

The default kernel of CachyOS includes optimization patches like BORE and scheduler tweaks that squeeze the CPU without asking permission. The LTS, on the other hand, is the boring but reliable friend who never fails in the middle of a presentation. The RC version brings experimental features that can make the system fly or catch fire. The hardened one activates protections like stack clash and memory reinforcements, ideal if you think even your toaster is spying on you. The server version, finally, prioritizes heavy multitasking. Each one has a clear purpose, although most mortals only need one.

The hardened kernel: for users who suspect even their own shadow 🔒

The hardened version of CachyOS is like putting a lock on the lock and then watching the lock with a camera. If you activate all protections, your system will be so secure that even you won't be able to run a script without sweating. Ideal for those who believe the neighbor is stealing their WiFi or that the Linux kernel has a backdoor for reptilians. In the end, security is good, but don't expect to play Doom while compiling a kernel. Sometimes, analysis paralysis is worse than a virus.