Performance counter stats for 'du -s -x /' (10 runs): 4326.865299 task-clock (msec) # 0.998 CPUs utilized ( +- 1.41% ) 473 context-switches # 0.109 K/sec ( +- 1.86% ) 0 cpu-migrations # 0.000 K/sec ( +- 44.72% ) 7,834 page-faults # 0.002 M/sec ( +- 0.39% ) 13,106,836,278 cycles # 3.029 GHz ( +- 1.14% ) (83.31%) 1,803,024,501 stalled-cycles-frontend # 13.76% frontend cycles idle ( +- 0.64% ) (83.33%) 1,011,582,569 stalled-cycles-backend # 7.72% backend cycles idle ( +- 0.04% ) (83.33%) 7,696,289,813 instructions # 0.59 insn per cycle # 0.23 stalled cycles per insn ( +- 0.04% ) (83.34%) 1,525,110,536 branches # 352.475 M/sec ( +- 0.03% ) (83.35%) 30,871,065 branch-misses # 2.02% of all branches ( +- 0.86% ) (83.35%) 4.337176167 seconds time elapsed ( +- 1.41% )