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] [16.7% done] [ 13882/     0 kb/s] [eta 00m:15s]
Threads: 3: [Fmm] [21.1% done] [  8175/ 39654 kb/s] [eta 00m:15s]
Threads: 3: [Fmm] [29.4% done] [  4266/  8684 kb/s] [eta 00m:12s]
Threads: 3: [Fmm] [30.0% done] [  4181/  2468 kb/s] [eta 00m:14s]
Threads: 3: [FFm] [31.8% done] [  2208/  3941 kb/s] [eta 00m:15s]
Threads: 3: [FFm] [53.3% done] [  1247/ 31760 kb/s] [eta 00m:07s]
Threads: 3: [FFF] [100.0% done] [     0/ 22346 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=12134, got signal=6
Threads: 2: [V_V] [68.4% done] [  1893/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [87.5% done] [ 60801/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 55456/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12133
  read : io=100MiB, bw=6,614KiB/s, runt= 15852msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  227, avg=17.04, stdev=37.03
    bw (KiB/s) : min=   10, max=34354, per=109.34%, avg=15386.22, stdev=15761.84
  write: io=95,324KiB, bw=7,532KiB/s, runt= 12959msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.02
    clat (msec): min=    0, max=  103, avg= 0.68, stdev= 4.92
    bw (KiB/s) : min=    0, max=57802, per=131.67%, avg=25632.75, stdev=24488.10
  cpu          : usr=12.34%, sys=4.84%, ctx=10143
  IO depths    : 1=37.4%, 2=29.3%, 4=24.3%, 8=9.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.7%, 4=16.6%, 10=18.4%, 20=2.8%, 50=1.1%, 100=1.6%
     lat (msec): 250=4.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12134
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=69.2%, 2=14.2%, 4=2.0%, 8=14.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=82.6%, 4=0.2%, 10=0.1%, 20=0.2%, 50=1.8%, 100=3.9%
     lat (msec): 250=9.7%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12135
  read : io=100MiB, bw=6,675KiB/s, runt= 15706msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  347, avg=44.55, stdev=70.83
    bw (KiB/s) : min=    8, max=24518, per=65.10%, avg=9160.21, stdev=8548.59
  write: io=61,780KiB, bw=4,880KiB/s, runt= 12963msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  266, avg= 2.44, stdev=16.63
    bw (KiB/s) : min=    0, max=59064, per=106.23%, avg=20680.67, stdev=33274.27
  cpu          : usr=7.08%, sys=4.43%, ctx=8931
  IO depths    : 1=30.2%, 2=21.4%, 4=27.9%, 8=20.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.7%, 4=8.5%, 10=23.7%, 20=6.5%, 50=1.6%, 100=5.3%
     lat (msec): 250=9.6%, 500=1.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=14,072KiB/s, minb=0KiB/s, maxb=6,675KiB/s, mint=15706msec, maxt=15852msec
  WRITE: io=241MiB, aggrb=19,467KiB/s, minb=0KiB/s, maxb=7,532KiB/s, mint=15706msec, maxt=15852msec

Disk stats (read/write):
  cciss!c0d0: ios=4531/3000, merge=1009/58543, ticks=39092/1420920, in_queue=1460492, util=97.90%
4.53user 2.15system 0:16.19elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
549976inputs+492928outputs (0major+2455minor)pagefaults 0swaps