testsuite/systemtap.examples/profiling/thread-times.stp


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#! /usr/bin/stap

probe timer.profile {
  tid=tid()
  if (!user_mode())
    kticks[tid] <<< 1
  else
    uticks[tid] <<< 1
  ticks <<< 1
  tids[tid] <<< 1
}

global uticks, kticks, ticks

global tids

probe timer.s(5), end {
  allticks = @count(ticks)
  printf ("%5s %7s %7s (of %d ticks)\n",
          "tid", "%user", "%kernel", allticks)
  foreach (tid in tids- limit 20) {
    uscaled = @count(uticks[tid])*10000/allticks
    kscaled = @count(kticks[tid])*10000/allticks
    printf ("%5d %3d.%02d%% %3d.%02d%%\n",
      tid, uscaled/100, uscaled%100, kscaled/100, kscaled%100)
  }
  printf("\n")

  delete uticks
  delete kticks
  delete ticks
  delete tids
}