doc/examples/getcpu-override/README

   1 This getcpu override example shows how to implement and load a getcpu
   2 override plugin for LTTng-UST. This can be useful in cases where direct
   3 hardware access is available for architecture-specific registers holding
   4 the CPU number, and where it should be used rather than the Linux kernel
   5 sched_getcpu() vDSO/syscall.