isolcpus — Isolate CPUs from the kernel scheduler.
Remove the specified CPUs, as defined by the
values, from the general kernel
SMP balancing and scheduler algroithms. The only way to move a
process onto or off an "isolated" CPU is via the CPU affinity syscalls.
the maximum value is 1 less than the number of CPUs on the system.
This option is the preferred way to isolate CPUs. The alternative,
manually setting the CPU mask of all tasks in the system, can cause
problems and suboptimal load balancer performance.