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] [13.0% done] [ 18220/  3384 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [17.4% done] [  4653/ 14700 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.7% done] [  6818/ 11158 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [25.0% done] [ 11596/  4051 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [29.2% done] [ 16990/  1598 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [32.0% done] [ 10930/  7314 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [ 14883/  2566 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [  9696/  5495 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [42.3% done] [ 13711/  1773 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [46.2% done] [ 10459/  4120 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [ 12003/  1956 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  7325/  5511 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [53.6% done] [  7020/  4246 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [57.1% done] [  9916/  1761 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  6253/  2986 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  1956/  6361 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25295, got signal=6
Threads: 2: [m_m] [61.3% done] [  7280/  1159 kb/s] [eta 00m:12s]
Threads: 2: [m_m] [64.5% done] [  1773/  5295 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25294, got signal=6
Threads: 1: [__m] [65.6% done] [   671/  5804 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25296, got signal=6

fio: (groupid=0): err= 0: pid=25294
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=4.6%, 8=95.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.4%, 20=0.5%, 50=9.2%, 100=43.6%
     lat (msec): 250=45.5%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25295
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=7.2%, 8=92.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=1.5%, 50=9.3%, 100=53.8%
     lat (msec): 250=34.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25296
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=3.7%, 8=96.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.1%, 50=11.7%, 100=34.8%
     lat (msec): 250=51.1%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3816/2216, merge=788/147, ticks=48556/32980, in_queue=81528, util=97.92%
0.19user 1.00system 0:22.61elapsed 5%CPU (0avgtext+0avgdata 0maxresident)k
421144inputs+193168outputs (0major+2456minor)pagefaults 0swaps