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] [ 15823/     0 kb/s] [eta 00m:06s]
Threads: 3: [mmm] [44.4% done] [ 16302/ 24291 kb/s] [eta 00m:05s]
Threads: 3: [mmm] [50.0% done] [ 12650/ 22163 kb/s] [eta 00m:05s]
Threads: 3: [mFF] [60.0% done] [  1622/ 49253 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [63.6% done] [  1105/     0 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23984, got signal=6
Threads: 2: [_FF] [100.0% done] [   251/ 10237 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] [71.4% done] [ 15025/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [88.9% done] [ 61305/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 55647/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23984
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=74.2%, 4=5.1%, 8=20.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=60.1%, 4=14.1%, 10=1.3%, 20=0.1%, 50=1.7%, 100=9.1%
     lat (msec): 250=11.0%, 500=2.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23985
  read : io=100MiB, bw=6,046KiB/s, runt= 17340msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  289, avg=30.57, stdev=50.34
    bw (KiB/s) : min=   12, max=36005, per=92.26%, avg=12104.73, stdev=12872.68
  write: io=75,420KiB, bw=5,224KiB/s, runt= 14783msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  103, avg= 1.34, stdev= 6.63
    bw (KiB/s) : min=    0, max=15789, per=54.96%, avg=9003.33, stdev=8124.76
  cpu          : usr=9.16%, sys=4.22%, ctx=6585
  IO depths    : 1=1.3%, 2=54.7%, 4=27.6%, 8=16.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=41.4%, 4=16.4%, 10=22.8%, 20=5.0%, 50=1.3%, 100=4.9%
     lat (msec): 250=7.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23986
  read : io=100MiB, bw=5,901KiB/s, runt= 17768msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  282, avg=29.22, stdev=48.09
    bw (KiB/s) : min=    7, max=37519, per=95.58%, avg=12539.57, stdev=12161.40
  write: io=81,720KiB, bw=5,660KiB/s, runt= 14783msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  134, avg= 1.49, stdev= 7.81
    bw (KiB/s) : min=    0, max=60645, per=190.50%, avg=31207.75, stdev=32484.34
  cpu          : usr=9.95%, sys=4.64%, ctx=6506
  IO depths    : 1=1.2%, 2=57.8%, 4=26.0%, 8=15.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.8%, 4=17.6%, 10=21.0%, 20=3.3%, 50=2.1%, 100=6.3%
     lat (msec): 250=6.7%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=13,120KiB/s, minb=0KiB/s, maxb=6,046KiB/s, mint=17340msec, maxt=17768msec
  WRITE: io=231MiB, aggrb=16,382KiB/s, minb=0KiB/s, maxb=5,660KiB/s, mint=17340msec, maxt=17768msec

Disk stats (read/write):
  cciss!c0d0: ios=4700/3571, merge=1008/55496, ticks=40788/1456036, in_queue=1497556, util=95.84%
4.78user 2.01system 0:18.07elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
563240inputs+473040outputs (0major+2455minor)pagefaults 0swaps