fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [9.4% done] [ 15289/     0 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [11.8% done] [  9480/  6672 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [14.3% done] [  1438/ 16160 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [16.7% done] [  7382/  8171 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [20.6% done] [  9810/  5625 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [22.9% done] [  7439/  7480 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [25.7% done] [  6298/  8053 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [28.6% done] [  7489/  7001 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [31.4% done] [  8692/  2798 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [32.4% done] [  7447/  5499 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [35.1% done] [  9863/  1688 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [38.9% done] [  8777/  3376 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.5% done] [  9737/  1309 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.2% done] [  6943/  5348 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.7% done] [  1247/  8232 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [46.2% done] [  2847/  6243 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [48.7% done] [  6601/  3087 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [51.3% done] [  5198/  4087 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [53.8% done] [  6593/  1805 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [55.0% done] [  3746/  3677 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [57.5% done] [  9038/    85 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [60.0% done] [  6906/  1236 kb/s] [eta 00m:16s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28289, got signal=6
Threads: 2: [m_m] [62.5% done] [  5287/  2180 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28290, got signal=6
Threads: 1: [m__] [66.7% done] [  3689/  2668 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28288, got signal=6

fio: (groupid=0): err= 0: pid=28288
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=16.6%, 8=83.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.5%, 20=2.3%, 50=45.9%, 100=13.0%
     lat (msec): 250=10.4%, 500=26.1%, 750=1.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28289
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=17.4%, 8=82.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=5.0%, 50=44.9%, 100=11.4%
     lat (msec): 250=15.2%, 500=22.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28290
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=12.4%, 8=87.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.9%, 50=50.8%, 100=9.3%
     lat (msec): 250=13.8%, 500=24.6%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3583/2259, merge=551/555, ticks=56872/35688, in_queue=92564, util=99.38%
0.69user 0.38system 0:27.07elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
372776inputs+241464outputs (0major+2477minor)pagefaults 0swaps