Isolate a CPU Core

  1. Run cat /proc/cpuinfo to check the information of CPU:
    Figure 1. Example Output
  2. Add parameters ‘isolcpus’ in the startup command line file ‘extlinux.conf’, and isolate specific CPUs from the general SMP balancing and scheduler algorithms.
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    Figure 2. Example Output
  3. Modify the parameters as shown in the figure above. After restarting, the core/processor 3 will not participate in system scheduling.