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] [50.0% done] [ 13230/ 51277 kb/s] [eta 00m:03s]
Threads: 3: [mFm] [57.1% done] [  4047/ 19321 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [62.5% done] [  1045/  8635 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [60.0% done] [  1041/     0 kb/s] [eta 00m:04s]
Threads: 3: [FFF] [100.0% done] [  1704/  8977 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=18632, got signal=6
Threads: 2: [VV_] [72.2% done] [ 17099/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [93.3% done] [ 61212/     0 kb/s] [eta 00m:01s]
Threads: 2: [VV_] [100.0% done] [ 66715/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=18630
  read : io=100MiB, bw=6,791KiB/s, runt= 15439msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  393, avg=35.98, stdev=66.39
    bw (KiB/s) : min=   14, max=34373, per=73.63%, avg=10446.37, stdev=11794.05
  write: io=72,652KiB, bw=5,860KiB/s, runt= 12695msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  251, avg= 2.28, stdev=13.44
    bw (KiB/s) : min=    0, max=25564, per=62.04%, avg=12698.50, stdev=12308.95
  cpu          : usr=10.10%, sys=5.13%, ctx=5925
  IO depths    : 1=1.6%, 2=55.5%, 4=25.2%, 8=17.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.4%, 4=13.9%, 10=19.3%, 20=4.6%, 50=1.1%, 100=7.1%
     lat (msec): 250=5.6%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18631
  read : io=100MiB, bw=6,798KiB/s, runt= 15423msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  148, avg=17.21, stdev=32.11
    bw (KiB/s) : min=   24, max=43753, per=126.82%, avg=17991.56, stdev=16093.89
  write: io=87,824KiB, bw=7,086KiB/s, runt= 12691msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   62, avg= 0.59, stdev= 3.76
    bw (KiB/s) : min=    0, max=59714, per=166.02%, avg=33981.00, stdev=30248.76
  cpu          : usr=12.11%, sys=5.14%, ctx=6803
  IO depths    : 1=14.0%, 2=51.2%, 4=23.3%, 8=11.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=55.3%, 4=15.3%, 10=17.4%, 20=2.2%, 50=1.9%, 100=4.7%
     lat (msec): 250=3.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18632
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=7.2%, 2=72.9%, 4=6.0%, 8=13.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.7%, 4=14.8%, 10=1.3%, 20=1.1%, 50=7.2%, 100=5.6%
     lat (msec): 250=3.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=209MiB, aggrb=14,187KiB/s, minb=0KiB/s, maxb=6,798KiB/s, mint=0msec, maxt=15439msec
  WRITE: io=248MiB, aggrb=20,468KiB/s, minb=0KiB/s, maxb=7,086KiB/s, mint=0msec, maxt=15439msec

Disk stats (read/write):
  cciss!c0d0: ios=2729/3154, merge=6911/60236, ticks=204704/1405788, in_queue=1610704, util=98.01%
5.04user 2.26system 0:15.76elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
514224inputs+507552outputs (0major+2450minor)pagefaults 0swaps