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] [33.3% done] [ 17314/ 48810 kb/s] [eta 00m:06s]
Threads: 3: [mFm] [50.0% done] [  5286/ 61972 kb/s] [eta 00m:04s]
Threads: 3: [mFm] [62.5% done] [  2285/ 22021 kb/s] [eta 00m:03s]
Threads: 3: [mFm] [60.0% done] [  2470/     0 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [70.0% done] [  3035/ 12365 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=31350, got signal=6
Threads: 2: [_FF] [100.0% done] [   455/  1491 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] [73.7% done] [ 19760/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [88.2% done] [ 62906/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 69124/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=31350
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=11.6%, 2=58.9%, 4=4.5%, 8=25.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=63.2%, 4=7.2%, 10=0.6%, 20=0.7%, 50=6.4%, 100=8.3%
     lat (msec): 250=12.7%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31351
  read : io=100MiB, bw=6,469KiB/s, runt= 16209msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  188, avg=15.90, stdev=37.68
    bw (KiB/s) : min=   16, max=54165, per=138.92%, avg=20344.44, stdev=20812.58
  write: io=92,872KiB, bw=6,945KiB/s, runt= 13692msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  110, avg= 1.29, stdev= 5.86
    bw (KiB/s) : min=    0, max=61317, per=200.41%, avg=36295.75, stdev=29848.29
  cpu          : usr=12.29%, sys=5.01%, ctx=5789
  IO depths    : 1=3.2%, 2=60.1%, 4=27.4%, 8=9.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.2%, 4=23.6%, 10=18.4%, 20=1.7%, 50=0.4%, 100=1.3%
     lat (msec): 250=4.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31352
  read : io=100MiB, bw=6,356KiB/s, runt= 16483msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  327, avg=34.26, stdev=64.50
    bw (KiB/s) : min=   13, max=32010, per=60.75%, avg=8896.18, stdev=10439.54
  write: io=78,044KiB, bw=5,835KiB/s, runt= 13696msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  211, avg= 2.45, stdev=14.68
    bw (KiB/s) : min=    0, max=22743, per=62.95%, avg=11401.00, stdev=9984.66
  cpu          : usr=10.41%, sys=4.25%, ctx=5838
  IO depths    : 1=2.0%, 2=57.4%, 4=24.1%, 8=16.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.2%, 4=15.4%, 10=18.9%, 20=3.7%, 50=2.3%, 100=3.9%
     lat (msec): 250=6.6%, 500=1.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=230MiB, aggrb=14,645KiB/s, minb=0KiB/s, maxb=6,469KiB/s, mint=16209msec, maxt=16483msec
  WRITE: io=237MiB, aggrb=18,111KiB/s, minb=0KiB/s, maxb=6,945KiB/s, mint=16209msec, maxt=16483msec

Disk stats (read/write):
  cciss!c0d0: ios=2238/3440, merge=3470/57061, ticks=160008/1474916, in_queue=1635036, util=95.39%
5.06user 1.96system 0:16.81elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
539088inputs+484584outputs (0major+2445minor)pagefaults 0swaps