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] [50.0% done] [ 12723/117071 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=28635, got signal=6
Threads: 2: [mm_] [66.7% done] [ 11035/ 59178 kb/s] [eta 00m:02s]
Threads: 2: [FF_] [100.0% done] [   662/  5343 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: [VV_] [73.7% done] [ 17448/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [93.8% done] [ 66438/     0 kb/s] [eta 00m:01s]
Threads: 2: [VV_] [100.0% done] [ 58336/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=28633
  read : io=100MiB, bw=6,387KiB/s, runt= 16409msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  254, avg=23.63, stdev=39.62
    bw (KiB/s) : min=    8, max=38859, per=113.74%, avg=15592.45, stdev=13984.34
  write: io=80,756KiB, bw=6,038KiB/s, runt= 13695msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  118, avg= 1.34, stdev= 6.33
    bw (KiB/s) : min=    0, max=62715, per=174.64%, avg=32845.25, stdev=31803.83
  cpu          : usr=10.31%, sys=4.66%, ctx=7992
  IO depths    : 1=14.9%, 2=41.6%, 4=27.8%, 8=15.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.2%, 4=14.8%, 10=25.7%, 20=3.3%, 50=6.6%, 100=5.0%
     lat (msec): 250=4.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28634
  read : io=100MiB, bw=6,329KiB/s, runt= 16566msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  317, avg=24.14, stdev=44.26
    bw (KiB/s) : min=   26, max=34182, per=97.97%, avg=13430.73, stdev=12688.38
  write: io=85,412KiB, bw=6,386KiB/s, runt= 13695msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   73, avg= 1.34, stdev= 4.51
    bw (KiB/s) : min=    0, max=61611, per=184.93%, avg=34779.50, stdev=31005.58
  cpu          : usr=11.16%, sys=4.88%, ctx=6258
  IO depths    : 1=1.0%, 2=54.0%, 4=29.8%, 8=15.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.0%, 4=19.6%, 10=20.3%, 20=7.4%, 50=5.4%, 100=2.8%
     lat (msec): 250=5.1%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=28635
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=87.4%, 4=4.5%, 8=8.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=77.1%, 4=12.7%, 10=1.1%, 20=0.1%, 50=0.5%, 100=4.2%
     lat (msec): 250=3.7%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=217MiB, aggrb=13,709KiB/s, minb=0KiB/s, maxb=6,387KiB/s, mint=0msec, maxt=16566msec
  WRITE: io=246MiB, aggrb=18,807KiB/s, minb=0KiB/s, maxb=6,386KiB/s, mint=0msec, maxt=16566msec

Disk stats (read/write):
  cciss!c0d0: ios=4502/3424, merge=1052/59296, ticks=34420/1393768, in_queue=1428796, util=97.74%
4.95user 2.04system 0:16.90elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
546296inputs+503104outputs (0major+2453minor)pagefaults 0swaps