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: [mFF] [27.3% done] [  2547/ 16233 kb/s] [eta 00m:08s]
Threads: 3: [mFF] [66.7% done] [     0/ 59371 kb/s] [eta 00m:02s]
Threads: 3: [FFF] [100.0% done] [     0/  5108 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=24440, got signal=6
Threads: 2: [_VV] [84.6% done] [ 53902/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 65714/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 63620/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=24440
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=85.9%, 4=2.1%, 8=11.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=73.8%, 4=12.3%, 10=1.2%, 20=0.1%, 50=0.5%, 100=6.5%
     lat (msec): 250=4.8%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24441
  read : io=100MiB, bw=7,924KiB/s, runt= 13231msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  255, avg=13.17, stdev=31.39
    bw (KiB/s) : min=    1, max=49209, per=135.20%, avg=23556.75, stdev=19820.28
  write: io=98,588KiB, bw=9,902KiB/s, runt= 10195msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   67, avg= 0.24, stdev= 3.19
    bw (KiB/s) : min=    0, max=60183, per=104.71%, avg=28891.33, stdev=30163.22
  cpu          : usr=12.03%, sys=5.02%, ctx=10559
  IO depths    : 1=50.4%, 2=17.5%, 4=24.3%, 8=7.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=58.2%, 4=12.6%, 10=20.8%, 20=3.0%, 50=0.6%, 100=2.2%
     lat (msec): 250=2.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24442
  read : io=100MiB, bw=7,834KiB/s, runt= 13384msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  207, avg=13.67, stdev=34.09
    bw (KiB/s) : min=    3, max=36928, per=143.91%, avg=25073.75, stdev=14060.63
  write: io=96,688KiB, bw=9,711KiB/s, runt= 10195msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  130, avg= 0.35, stdev= 5.98
    bw (KiB/s) : min=    0, max=81805, per=166.65%, avg=45984.00, stdev=41838.73
  cpu          : usr=12.04%, sys=5.02%, ctx=13437
  IO depths    : 1=68.4%, 2=8.5%, 4=17.4%, 8=5.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.9%, 4=7.7%, 10=15.4%, 20=1.8%, 50=1.3%, 100=1.7%
     lat (msec): 250=3.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=17,423KiB/s, minb=0KiB/s, maxb=7,924KiB/s, mint=13231msec, maxt=13384msec
  WRITE: io=268MiB, aggrb=27,593KiB/s, minb=0KiB/s, maxb=9,902KiB/s, mint=13231msec, maxt=13384msec

Disk stats (read/write):
  cciss!c0d0: ios=4049/3049, merge=950/65591, ticks=28952/1279840, in_queue=1308880, util=95.30%
4.64user 2.01system 0:14.32elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
509168inputs+549480outputs (0major+2449minor)pagefaults 0swaps