linux-imx

    boot parameter offloading RCU callbacks from all CPUs susceptible

    to OS jitter.  This approach prevents the rcuc/%u kthreads from

    having any work to do, so that they are never awakened.

4.  Ensure that the CPU never enters the kernel, and, in particular,

    avoid initiating any CPU hotplug operations on this CPU.  This is

    another way of preventing any callbacks from being queued on the

    CPU, again preventing the rcuc/%u kthreads from having any work

    to do.

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Name:

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Purpose:

  Offload RCU callbacks from the corresponding CPU.

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To reduce its OS jitter, do at least one of the following:

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1.  Use affinity, cgroups, or other mechanism to force these kthreads

    to execute on some other CPU.

2.  Build with CONFIG_RCU_NOCB_CPU=n, which will prevent these

    kthreads from being created in the first place.  However, please