You can already do this. There's a kernel boot parameter called isocpu or something and the kernel will only run on the logical cpus listed. Furthermore, you ca

You can already do this. There's a kernel boot parameter called isocpu or something and the kernel will only run on the logical cpus listed. Furthermore, you can isolate your user programs. The general benefit is latency, but there's a theoretical trade-off in scheduling bandwidth. The memory heirarchy will be utilized less efficiently too.