#ts device  qtime stime
  1.0 {4}       9.7   0.3
  2.0 {4}       0.0   0.0
  2.8 {4}       0.0   0.0
  3.5 {4}       0.0   0.0
  4.5 {4}       0.0   0.1
  6.2 {4}       0.1   0.1
  6.4 {4}       0.0   0.5
  7.4 {4}       0.0   0.1
  8.4 {4}      19.9   0.5
  9.4 {4}       0.0   0.0