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] [11.5% done] [  4889/ 13219 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [15.4% done] [  8745/  8301 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [18.5% done] [ 12161/  2619 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [21.4% done] [ 11319/  3965 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [25.0% done] [ 11422/  4217 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [27.6% done] [ 11242/  2896 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [30.0% done] [  8196/  6613 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [33.3% done] [  9241/  4551 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [36.7% done] [  7740/  6809 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [38.7% done] [  8554/  3087 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [41.9% done] [  7207/  7728 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [45.2% done] [  6865/  7618 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [48.4% done] [  3652/ 10270 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [51.6% done] [  9619/  4604 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [54.8% done] [  8224/  4287 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [56.2% done] [  8277/  3477 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [59.4% done] [  5332/  5011 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [60.6% done] [  5076/  3628 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20116, got signal=6
Threads: 2: [m_m] [61.8% done] [  8244/   126 kb/s] [eta 00m:13s]
Threads: 2: [m_m] [64.7% done] [  6768/   984 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20117, got signal=6
Threads: 1: [m__] [67.6% done] [  1195/  5613 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=20115, got signal=6

fio: (groupid=0): err= 0: pid=20115
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=6.9%, 8=92.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.5%, 50=22.6%, 100=41.4%
     lat (msec): 250=19.9%, 500=14.9%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20116
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=10.2%, 8=89.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.4%, 4=0.0%, 10=0.4%, 20=2.2%, 50=25.8%, 100=44.5%
     lat (msec): 250=11.0%, 500=15.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=20117
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=8.1%, 8=91.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=1.7%, 50=24.0%, 100=39.7%
     lat (msec): 250=17.1%, 500=16.3%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3349/2373, merge=469/439, ticks=50292/37792, in_queue=88084, util=99.33%
0.59user 0.28system 0:23.76elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
362112inputs+252080outputs (0major+2474minor)pagefaults 0swaps