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] [25.0% done] [ 14782/ 45056 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [57.1% done] [ 12898/101651 kb/s] [eta 00m:03s]
Threads: 3: [Fmm] [62.5% done] [  4388/ 27402 kb/s] [eta 00m:03s]
Threads: 3: [FFm] [60.0% done] [  1476/  1805 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [63.6% done] [  1094/     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=23947, got signal=6
Threads: 2: [FF_] [100.0% done] [   401/ 12081 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_] [70.0% done] [  9382/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [88.2% done] [ 59625/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 58397/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23945
  read : io=100MiB, bw=6,299KiB/s, runt= 16646msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  318, avg=23.13, stdev=49.87
    bw (KiB/s) : min=    0, max=44013, per=118.20%, avg=16263.67, stdev=15264.31
  write: io=85,832KiB, bw=6,328KiB/s, runt= 13888msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  161, avg= 0.94, stdev= 7.84
    bw (KiB/s) : min=    0, max=60325, per=176.59%, avg=32360.00, stdev=31322.13
  cpu          : usr=9.97%, sys=4.95%, ctx=10018
  IO depths    : 1=38.8%, 2=23.7%, 4=26.0%, 8=11.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.9%, 4=14.7%, 10=22.7%, 20=3.4%, 50=1.2%, 100=2.7%
     lat (msec): 250=4.7%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23946
  read : io=100MiB, bw=6,207KiB/s, runt= 16893msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=25.91, stdev=53.49
    bw (KiB/s) : min=   10, max=38460, per=83.64%, avg=11507.47, stdev=13033.73
  write: io=82,504KiB, bw=6,083KiB/s, runt= 13887msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  243, avg= 1.89, stdev=13.38
    bw (KiB/s) : min=    0, max=22073, per=80.16%, avg=14688.75, stdev=10200.22
  cpu          : usr=9.92%, sys=4.59%, ctx=7213
  IO depths    : 1=8.2%, 2=51.7%, 4=26.7%, 8=13.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.7%, 4=14.6%, 10=21.1%, 20=3.3%, 50=3.1%, 100=3.0%
     lat (msec): 250=5.3%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23947
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=75.4%, 4=5.9%, 8=18.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=60.8%, 4=13.2%, 10=2.1%, 20=1.3%, 50=6.2%, 100=3.3%
     lat (msec): 250=10.4%, 500=2.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=222MiB, aggrb=13,759KiB/s, minb=0KiB/s, maxb=6,299KiB/s, mint=0msec, maxt=16893msec
  WRITE: io=243MiB, aggrb=18,325KiB/s, minb=0KiB/s, maxb=6,328KiB/s, mint=0msec, maxt=16893msec

Disk stats (read/write):
  cciss!c0d0: ios=4579/3365, merge=1063/58719, ticks=42728/1422884, in_queue=1465828, util=95.94%
4.77user 2.06system 0:17.20elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
558400inputs+497120outputs (0major+2457minor)pagefaults 0swaps