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] [9.7% done] [ 11279/  5352 kb/s] [eta 00m:28s]
Threads: 3: [mmm] [12.9% done] [  7443/  8452 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [15.6% done] [ 12084/  3210 kb/s] [eta 00m:27s]
Threads: 3: [mmm] [19.4% done] [  5511/  9871 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [21.9% done] [  3778/ 11954 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [25.0% done] [ 11848/  2399 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [26.5% done] [  5885/  7341 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [28.6% done] [  5627/  6298 kb/s] [eta 00m:25s]
Threads: 3: [mmm] [32.4% done] [  6768/  6548 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [34.3% done] [  9094/  4148 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [37.1% done] [  8615/  3258 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [40.0% done] [ 10896/   317 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.7% done] [  6390/  5153 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [44.4% done] [  7659/  3738 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [47.2% done] [  8281/  2664 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [48.6% done] [  3274/  7870 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [51.4% done] [  6007/  5275 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [54.1% done] [  6910/  3677 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [55.3% done] [  4437/  4161 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [56.4% done] [  3351/  4392 kb/s] [eta 00m:17s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1828, got signal=6
Threads: 2: [mm_] [60.5% done] [  7679/  1240 kb/s] [eta 00m:15s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1827, got signal=6
Threads: 1: [m__] [61.5% done] [  5836/  2375 kb/s] [eta 00m:15s]
Threads: 1: [m__] [67.6% done] [  4209/  2818 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1826, got signal=6

fio: (groupid=0): err= 0: pid=1826
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=9.5%, 8=90.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.0%, 10=0.2%, 20=2.4%, 50=30.1%, 100=29.6%
     lat (msec): 250=14.9%, 500=22.1%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1827
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=10.5%, 8=89.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.1%, 20=3.6%, 50=30.2%, 100=30.3%
     lat (msec): 250=15.5%, 500=19.7%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1828
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=0.3%, 4=8.9%, 8=90.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.4%, 20=0.4%, 50=37.2%, 100=35.5%
     lat (msec): 250=7.3%, 500=18.5%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):

Disk stats (read/write):
  cciss!c0d0: ios=3467/2224, merge=718/325, ticks=48184/43364, in_queue=91544, util=99.27%
0.65user 0.31system 0:25.71elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
378760inputs+235568outputs (0major+2479minor)pagefaults 0swaps