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] [8.6% done] [ 14236/  3152 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [11.4% done] [ 11048/  4819 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [14.3% done] [  8460/  7850 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [15.8% done] [ 14159/  1110 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [18.9% done] [  9033/  6582 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [21.6% done] [  7260/  6288 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [25.0% done] [  8810/  5840 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [27.8% done] [ 10221/  2229 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [29.7% done] [ 10612/   850 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [32.4% done] [  8545/  4242 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [34.2% done] [  5779/  6292 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [36.8% done] [  6554/  4311 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  3026/  7374 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.1% done] [  7069/  4319 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [45.9% done] [ 10384/  3929 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [48.6% done] [  9603/  2525 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [51.4% done] [ 11385/  1020 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [54.1% done] [  5881/  3929 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [55.3% done] [  9111/   622 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19526, got signal=6
Threads: 2: [mm_] [56.4% done] [  4929/  3888 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19525, got signal=6
Threads: 1: [m__] [59.0% done] [  5271/  2302 kb/s] [eta 00m:16s]
Threads: 1: [m__] [63.2% done] [  8033/     0 kb/s] [eta 00m:14s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=19524, got signal=6

fio: (groupid=0): err= 0: pid=19524
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.3%, 4=12.9%, 8=86.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.2%, 4=0.1%, 10=0.3%, 20=3.9%, 50=30.6%, 100=25.7%
     lat (msec): 250=17.1%, 500=21.1%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19525
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.2%, 4=8.6%, 8=91.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.2%, 10=0.4%, 20=0.9%, 50=28.6%, 100=37.9%
     lat (msec): 250=12.2%, 500=19.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19526
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=11.2%, 8=88.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.1%, 10=0.4%, 20=1.8%, 50=31.7%, 100=40.3%
     lat (msec): 250=5.5%, 500=19.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3975/1788, merge=496/362, ticks=52408/37856, in_queue=90264, util=99.19%
0.56user 0.31system 0:25.51elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
419056inputs+195296outputs (0major+2469minor)pagefaults 0swaps