Linux Kernel in a Nutshell

Name

PREEMPT_NONE — No forced preemption (server)

This is the traditional Linux preemption model, geared toward maximizing throughput. It still provides good latency most of the time, occasional longer delays are possible.

Select this option if you are building a kernel for a server or scientific/computation system, or if you want to maximize the raw processing power of the kernel, irrespective of scheduling latencies.