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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=12849, got signal=6
Threads: 2: [mm_] [12.0% done] [ 10957/ 29782 kb/s] [eta 00m:22s]
Threads: 2: [mF_] [14.8% done] [  4909/ 19080 kb/s] [eta 00m:23s]
Threads: 2: [mF_] [15.2% done] [   630/     0 kb/s] [eta 00m:28s]
Threads: 2: [FF_] [100.0% done] [   244/ 80785 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: [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: [VF_] [75.0% done] [ 10097/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [72.7% done] [ 23864/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [85.0% done] [ 28452/     0 kb/s] [eta 00m:03s]
Threads: 2: [VV_] [94.7% done] [ 27570/     0 kb/s] [eta 00m:01s]
Threads: 2: [VV_] [100.0% done] [ 25686/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 28301/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 22656/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12847
  read : io=100MiB, bw=5,154KiB/s, runt= 20326msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1775, avg=47.64, stdev=103.60
    bw (KiB/s) : min=    2, max=22683, per=95.10%, avg=9481.25, stdev=7117.16
  write: io=79,444KiB, bw=5,651KiB/s, runt= 14395msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1402, avg= 3.68, stdev=61.59
    bw (KiB/s) : min=    0, max=116883, per=328.14%, avg=58441.50, stdev=82648.76
  cpu          : usr=3.58%, sys=3.35%, ctx=12272
  IO depths    : 1=50.0%, 2=5.0%, 4=27.8%, 8=17.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.1%, 4=2.7%, 10=9.5%, 20=13.4%, 50=12.7%, 100=2.3%
     lat (msec): 250=8.3%, 500=0.5%, 750=0.1%, 1000=0.1%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=12848
  read : io=100MiB, bw=4,856KiB/s, runt= 21589msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  495, avg=38.41, stdev=58.15
    bw (KiB/s) : min=   19, max=26652, per=106.27%, avg=10594.72, stdev=8068.18
  write: io=92,972KiB, bw=6,150KiB/s, runt= 15479msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.08
    clat (msec): min=    0, max=  183, avg= 0.76, stdev= 8.33
    bw (KiB/s) : min=    0, max=39860, per=136.47%, avg=24305.33, stdev=21322.18
  cpu          : usr=4.30%, sys=3.58%, ctx=12188
  IO depths    : 1=47.6%, 2=7.7%, 4=29.1%, 8=15.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.5%, 4=2.1%, 10=8.9%, 20=14.3%, 50=14.8%, 100=1.9%
     lat (msec): 250=6.5%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12849
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=89.2%, 2=0.5%, 4=2.8%, 8=7.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=89.3%, 4=0.1%, 10=0.1%, 20=1.7%, 50=4.3%, 100=1.8%
     lat (msec): 250=2.2%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=205MiB, aggrb=9,970KiB/s, minb=0KiB/s, maxb=5,154KiB/s, mint=0msec, maxt=21589msec
  WRITE: io=263MiB, aggrb=17,810KiB/s, minb=0KiB/s, maxb=6,150KiB/s, mint=0msec, maxt=21589msec

Disk stats (read/write):
  cciss!c0d0: ios=4186/4276, merge=30/63074, ticks=59832/1727416, in_queue=1787248, util=97.88%
2.31user 1.84system 0:22.27elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
513360inputs+538472outputs (0major+2481minor)pagefaults 0swaps