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: [mFm] [33.3% done] [  9549/ 25660 kb/s] [eta 00m:06s]
Threads: 3: [mFF] [44.4% done] [  1775/ 41191 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=2373, got signal=6
Threads: 2: [_FF] [100.0% done] [   926/ 36603 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [86.7% done] [ 64349/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 69400/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=2373
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=14.1%, 2=71.4%, 4=2.1%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=78.0%, 4=7.7%, 10=0.2%, 20=0.2%, 50=0.6%, 100=6.8%
     lat (msec): 250=4.8%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2374
  read : io=100MiB, bw=7,056KiB/s, runt= 14860msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  164, avg=14.63, stdev=31.18
    bw (KiB/s) : min=    0, max=41187, per=105.07%, avg=16515.33, stdev=17405.71
  write: io=96,148KiB, bw=8,096KiB/s, runt= 12160msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   70, avg= 0.28, stdev= 3.52
    bw (KiB/s) : min=    0, max=58310, per=140.02%, avg=30403.25, stdev=24153.97
  cpu          : usr=11.71%, sys=4.63%, ctx=9757
  IO depths    : 1=51.2%, 2=15.1%, 4=24.8%, 8=8.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.1%, 4=17.6%, 10=17.4%, 20=2.1%, 50=0.6%, 100=3.7%
     lat (msec): 250=2.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=2375
  read : io=100MiB, bw=7,089KiB/s, runt= 14791msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  215, avg=19.02, stdev=37.75
    bw (KiB/s) : min=   13, max=40602, per=117.40%, avg=18453.09, stdev=14740.82
  write: io=82,656KiB, bw=6,960KiB/s, runt= 12160msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  147, avg= 1.00, stdev= 7.10
    bw (KiB/s) : min=    0, max=63651, per=151.07%, avg=32802.67, stdev=31870.47
  cpu          : usr=9.52%, sys=5.14%, ctx=6649
  IO depths    : 1=16.1%, 2=46.7%, 4=25.4%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.8%, 4=16.4%, 10=20.4%, 20=1.4%, 50=0.6%, 100=3.8%
     lat (msec): 250=4.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=223MiB, aggrb=15,718KiB/s, minb=0KiB/s, maxb=7,089KiB/s, mint=14791msec, maxt=14860msec
  WRITE: io=252MiB, aggrb=21,713KiB/s, minb=0KiB/s, maxb=8,096KiB/s, mint=14791msec, maxt=14860msec

Disk stats (read/write):
  cciss!c0d0: ios=1420/3570, merge=4634/60751, ticks=108380/1346244, in_queue=1455656, util=95.56%
4.54user 1.92system 0:15.16elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
507944inputs+515824outputs (0major+2447minor)pagefaults 0swaps