What SMP Linux? SMP (symmetric multiprocessing) is computer processing done by multiple processors that share a common operating system (OS) and memory. In symmetric multiprocessing, the processors share the same input/output (I/O) bus or data path. A single copy of the OS is in charge of all the processors.
What is SMP in Uname? “SMP” means that the kernel was built with support for SMP (symmetric multi-processing). “PREEMPT” means that the kernel was built as a preemptible kernel. “RT”, on version 4.19, means that the kernel was built as a fully preemptible (real-time) kernel, using the Preempt RT patches.
How can I tell if SMP is enabled? In Linux configuration, check for CONFIG_SMP=y . If this configuration is set then your kernel runs with Symmetric multiprocessing . Find your config file in /boot (usually file name as config-$(uname -r) on ubuntu) or else check in the /proc/config. gz .
How do I know my Ubuntu version? Open your terminal either by using the Ctrl+Alt+T keyboard shortcut or by clicking on the terminal icon. Use the lsb_release -a command to display the Ubuntu version. Your Ubuntu version will be shown in the Description line.