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: [Fmm] [18.8% done] [  7440/ 23539 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=29971, got signal=6
Threads: 2: [Fm_] [50.0% done] [  1114/ 62766 kb/s] [eta 00m:04s]
Threads: 2: [Fm_] [62.5% done] [   764/ 12145 kb/s] [eta 00m:03s]
Threads: 2: [FF_] [100.0% done] [     0/ 14309 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_] [68.8% done] [  5644/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [85.7% done] [ 63392/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 62050/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=29969
  read : io=100MiB, bw=7,576KiB/s, runt= 13839msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  166, avg=13.14, stdev=30.76
    bw (KiB/s) : min=    9, max=45744, per=147.20%, avg=23142.50, stdev=19258.62
  write: io=99,972KiB, bw=9,396KiB/s, runt= 10895msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  135, avg= 0.89, stdev= 5.61
    bw (KiB/s) : min=    0, max=60391, per=114.72%, avg=28760.33, stdev=30297.65
  cpu          : usr=12.72%, sys=5.46%, ctx=5962
  IO depths    : 1=1.5%, 2=66.3%, 4=24.7%, 8=7.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.6%, 4=20.3%, 10=20.3%, 20=2.7%, 50=0.6%, 100=0.6%
     lat (msec): 250=3.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29970
  read : io=100MiB, bw=7,611KiB/s, runt= 13768msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  371, avg=28.71, stdev=54.31
    bw (KiB/s) : min=   32, max=36399, per=90.62%, avg=14247.43, stdev=12474.08
  write: io=73,428KiB, bw=6,868KiB/s, runt= 10947msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  291, avg= 1.75, stdev=13.67
    bw (KiB/s) : min=    0, max=61382, per=106.36%, avg=26664.67, stdev=31473.35
  cpu          : usr=11.18%, sys=5.29%, ctx=7587
  IO depths    : 1=21.3%, 2=36.3%, 4=27.4%, 8=15.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.1%, 4=15.6%, 10=23.3%, 20=3.6%, 50=1.4%, 100=5.4%
     lat (msec): 250=5.5%, 500=0.8%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=29971
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=35.7%, 2=54.4%, 4=3.1%, 8=6.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=86.7%, 4=3.6%, 10=2.1%, 20=0.1%, 50=0.3%, 100=2.9%
     lat (msec): 250=3.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=208MiB, aggrb=15,722KiB/s, minb=0KiB/s, maxb=7,611KiB/s, mint=0msec, maxt=13839msec
  WRITE: io=262MiB, aggrb=25,071KiB/s, minb=0KiB/s, maxb=9,396KiB/s, mint=0msec, maxt=13839msec

Disk stats (read/write):
  cciss!c0d0: ios=4053/3109, merge=944/63784, ticks=30468/1309480, in_queue=1343128, util=96.17%
4.82user 1.95system 0:14.44elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
503056inputs+536072outputs (0major+2448minor)pagefaults 0swaps