testsuite/systemtap.samples/scf2.stp


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global traces

probe kernel.function("smp_call_function") { 
  traces[pid(), pexecname(), backtrace()] ++
}
probe timer.ms(1000) { exit () }
probe end {
  foreach ([pid+, name, stack] in traces) { # sort by pid
    printf ("traces[%d,%s,\n", pid, name)
    print_stack (stack)
    printf ("] = %d\n", traces[pid, name, stack]);
  }
}