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] [42.9% done] [ 14908/ 55755 kb/s] [eta 00m:04s]
Threads: 3: [mmm] [50.0% done] [ 16140/ 25153 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=32750, got signal=6
Threads: 2: [F_F] [100.0% done] [   992/ 71726 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: [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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [78.9% done] [ 48663/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [94.1% done] [ 56815/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=32749
  read : io=100MiB, bw=6,305KiB/s, runt= 16630msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  216, avg=23.70, stdev=40.46
    bw (KiB/s) : min=    0, max=41064, per=102.40%, avg=13690.23, stdev=13665.49
  write: io=77,436KiB, bw=5,582KiB/s, runt= 14203msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  165, avg= 1.49, stdev= 8.79
    bw (KiB/s) : min=    0, max=59269, per=124.88%, avg=21835.75, stdev=25967.93
  cpu          : usr=9.69%, sys=3.90%, ctx=6354
  IO depths    : 1=1.1%, 2=56.3%, 4=27.1%, 8=15.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.0%, 4=16.3%, 10=22.7%, 20=4.3%, 50=2.0%, 100=5.5%
     lat (msec): 250=5.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32750
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=84.1%, 4=4.0%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.1%, 4=15.9%, 10=1.6%, 20=0.2%, 50=1.5%, 100=6.8%
     lat (msec): 250=5.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32751
  read : io=100MiB, bw=6,132KiB/s, runt= 17099msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  248, avg=25.09, stdev=45.04
    bw (KiB/s) : min=   10, max=53936, per=104.56%, avg=13979.62, stdev=15508.01
  write: io=81,240KiB, bw=5,857KiB/s, runt= 14203msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  160, avg= 1.19, stdev= 8.16
    bw (KiB/s) : min=    0, max=59016, per=140.17%, avg=24509.20, stdev=30452.33
  cpu          : usr=10.27%, sys=4.51%, ctx=9025
  IO depths    : 1=28.5%, 2=32.5%, 4=24.3%, 8=14.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.2%, 4=17.2%, 10=21.0%, 20=3.0%, 50=0.9%, 100=6.7%
     lat (msec): 250=4.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=218MiB, aggrb=13,370KiB/s, minb=0KiB/s, maxb=6,305KiB/s, mint=17099msec, maxt=17099msec
  WRITE: io=237MiB, aggrb=17,485KiB/s, minb=0KiB/s, maxb=5,857KiB/s, mint=17099msec, maxt=17099msec

Disk stats (read/write):
  cciss!c0d0: ios=4596/3438, merge=1089/57108, ticks=34828/1429212, in_queue=1464244, util=94.32%
4.86user 1.90system 0:17.40elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
563016inputs+485080outputs (0major+2458minor)pagefaults 0swaps