# The swappiness sysctl parameter represents the kernel's preference (or avoidance) of swap space. Swappiness can have a value between 0 and 200, the default value is 60. # A low value causes the kernel to avoid swapping, a higher value causes the kernel to try to use swap space. Using a low value on sufficient memory is known to improve responsiveness on many systems. vm.swappiness=133 # Disable NMI watchdog: This action will speed up your boot and shutdown, because one less module is loaded. Additionally disabling watchdog timers increases performance and lowers power consumption kernel.nmi_watchdog = 0 # Enable the sysctl setting kernel.unprivileged_userns_clone to allow normal users to run unprivileged containers. kernel.unprivileged_userns_clone=1 # To hide any kernel messages from the console kernel.printk = 3 3 3 3 # the key combination of Alt+SysRq+ will result in Magic SysRQ invocation kernel.sysrq=1