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: [mmF] [20.0% done] [ 14224/ 37457 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=372, got signal=6
Threads: 2: [_mF] [22.2% done] [  3807/ 35574 kb/s] [eta 00m:14s]
Threads: 2: [_mF] [23.8% done] [  2452/     0 kb/s] [eta 00m:16s]
Threads: 2: [_mF] [31.6% done] [  1765/ 10713 kb/s] [eta 00m:13s]
Threads: 2: [_mF] [38.9% done] [  2222/  8890 kb/s] [eta 00m:11s]
Threads: 2: [_mF] [42.1% done] [  1968/  4429 kb/s] [eta 00m:11s]
Threads: 2: [_mF] [52.9% done] [  1142/ 12588 kb/s] [eta 00m:08s]
Threads: 2: [_mV] [66.7% done] [ 21199/ 20004 kb/s] [eta 00m:05s]
Threads: 2: [_FV] [100.0% done] [ 47484/  2713 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [ 27472/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [70.0% done] [   227/     0 kb/s] [eta 00m:06s]
Threads: 1: [_V_] [100.0% done] [ 47878/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=372
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=82.3%, 4=6.1%, 8=11.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.1%, 4=11.4%, 10=2.1%, 20=0.1%, 50=0.6%, 100=9.4%
     lat (msec): 250=1.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=373
  read : io=100MiB, bw=6,818KiB/s, runt= 15378msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  416, avg=46.15, stdev=86.91
    bw (KiB/s) : min=   46, max=49013, per=58.44%, avg=8587.29, stdev=13444.92
  write: io=58,384KiB, bw=4,258KiB/s, runt= 14039msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  335, avg= 3.85, stdev=25.55
    bw (KiB/s) : min=    0, max=10253, per=37.54%, avg=6504.00, stdev=4500.88
  cpu          : usr=7.44%, sys=5.54%, ctx=5739
  IO depths    : 1=2.2%, 2=50.9%, 4=24.4%, 8=22.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.4%, 4=10.6%, 10=19.4%, 20=7.1%, 50=1.8%, 100=7.5%
     lat (msec): 250=3.7%, 500=4.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=374
  read : io=100MiB, bw=9,012KiB/s, runt= 11635msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  137, avg=10.48, stdev=22.53
    bw (KiB/s) : min=   15, max=54290, per=159.59%, avg=23448.43, stdev=23885.50
  write: io=92,632KiB, bw=9,792KiB/s, runt=  9687msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   87, avg= 0.95, stdev= 3.81
    bw (KiB/s) : min=    0, max=61169, per=200.40%, avg=34721.25, stdev=30151.83
  cpu          : usr=17.50%, sys=7.36%, ctx=4540
  IO depths    : 1=2.6%, 2=63.7%, 4=25.0%, 8=8.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.4%, 4=20.0%, 10=18.4%, 20=2.1%, 50=1.8%, 100=3.5%
     lat (msec): 250=0.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=215MiB, aggrb=14,693KiB/s, minb=0KiB/s, maxb=9,012KiB/s, mint=11635msec, maxt=15378msec
  WRITE: io=232MiB, aggrb=17,326KiB/s, minb=0KiB/s, maxb=9,792KiB/s, mint=11635msec, maxt=15378msec

Disk stats (read/write):
  cciss!c0d0: ios=2757/3456, merge=18013/55832, ticks=135624/1535024, in_queue=1670740, util=98.00%
4.37user 2.15system 0:15.71elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
546232inputs+475128outputs (0major+2449minor)pagefaults 0swaps