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] [17.6% done] [ 18822/ 46774 kb/s] [eta 00m:14s]
Threads: 3: [Fmm] [30.8% done] [  9184/ 19438 kb/s] [eta 00m:09s]
Threads: 3: [Fmm] [55.6% done] [  3018/ 69241 kb/s] [eta 00m:04s]
Threads: 3: [Fmm] [60.0% done] [  3233/ 11616 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=6365, got signal=6
Threads: 2: [F_m] [63.6% done] [  2202/ 16339 kb/s] [eta 00m:04s]
Threads: 2: [F_m] [66.7% done] [  1452/     0 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [   565/  6276 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [77.8% done] [ 55523/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [100.0% done] [ 61045/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 49644/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=6363
  read : io=100MiB, bw=6,489KiB/s, runt= 16157msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  391, avg=19.35, stdev=44.67
    bw (KiB/s) : min=    0, max=52789, per=97.45%, avg=14811.67, stdev=17588.83
  write: io=94,004KiB, bw=7,306KiB/s, runt= 13175msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  205, avg= 1.41, stdev=10.49
    bw (KiB/s) : min=    0, max=53755, per=130.25%, avg=23552.40, stdev=19382.01
  cpu          : usr=12.06%, sys=4.83%, ctx=10089
  IO depths    : 1=39.4%, 2=24.3%, 4=26.1%, 8=10.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.3%, 4=14.6%, 10=22.4%, 20=3.6%, 50=1.1%, 100=2.2%
     lat (msec): 250=4.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6365
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=13.2%, 2=64.2%, 4=5.3%, 8=17.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=69.3%, 4=8.4%, 10=0.3%, 20=0.1%, 50=0.5%, 100=7.2%
     lat (msec): 250=13.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=6366
  read : io=100MiB, bw=6,540KiB/s, runt= 16032msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  403, avg=46.40, stdev=73.39
    bw (KiB/s) : min=   21, max=33976, per=51.65%, avg=7851.33, stdev=10342.52
  write: io=72,232KiB, bw=5,592KiB/s, runt= 13227msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  199, avg= 1.81, stdev=13.09
    bw (KiB/s) : min=    0, max=12318, per=36.23%, avg=6550.33, stdev=6196.18
  cpu          : usr=6.99%, sys=4.07%, ctx=7507
  IO depths    : 1=12.1%, 2=40.6%, 4=28.6%, 8=18.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.8%, 4=12.2%, 10=20.2%, 20=5.1%, 50=1.0%, 100=3.7%
     lat (msec): 250=11.3%, 500=1.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=234MiB, aggrb=15,200KiB/s, minb=0KiB/s, maxb=6,540KiB/s, mint=16032msec, maxt=16157msec
  WRITE: io=228MiB, aggrb=18,082KiB/s, minb=0KiB/s, maxb=7,306KiB/s, mint=16032msec, maxt=16157msec

Disk stats (read/write):
  cciss!c0d0: ios=4833/3395, merge=1050/54890, ticks=45944/1381956, in_queue=1430860, util=98.08%
4.24user 1.85system 0:16.51elapsed 36%CPU (0avgtext+0avgdata 0maxresident)k
593800inputs+467176outputs (0major+2451minor)pagefaults 0swaps