from 宋宝华:
https://www.toutiao.com/article/6937097613720191520/
1 2 3 4 5 6 7 8 9 10 11 12 | # grub.cfg, cpu order number starts from 0. linux ... isolcpus=2 # bash taskset -cp 2 662 cat /proc/interrupts cat /proc/irq/44/smp_affinity # make menuconfig NO_HZ_FULL NO_HZ_IDLE Documentation/timers/no_hz.rst |