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] [37.5% done] [ 15132/ 73557 kb/s] [eta 00m:05s]
Threads: 3: [mFm] [50.0% done] [ 10872/ 74960 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [55.6% done] [  2108/  8801 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [66.7% done] [   886/ 20154 kb/s] [eta 00m:03s]
Threads: 3: [FFm] [70.0% done] [  2111/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26820, got signal=6
Threads: 2: [FF_] [100.0% done] [  1041/     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_] [68.4% done] [     0/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [87.5% done] [ 64433/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 65714/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=26818
  read : io=100MiB, bw=6,628KiB/s, runt= 15819msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  257, avg=23.82, stdev=43.64
    bw (KiB/s) : min=    0, max=33130, per=88.74%, avg=13500.36, stdev=13696.76
  write: io=85,672KiB, bw=6,724KiB/s, runt= 13047msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  171, avg= 1.14, stdev=11.17
    bw (KiB/s) : min=    0, max=60964, per=124.87%, avg=23851.50, stdev=26530.24
  cpu          : usr=10.47%, sys=4.50%, ctx=9267
  IO depths    : 1=35.5%, 2=25.0%, 4=25.7%, 8=13.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.4%, 4=12.0%, 10=19.8%, 20=2.8%, 50=3.4%, 100=3.5%
     lat (msec): 250=5.7%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26819
  read : io=100MiB, bw=6,599KiB/s, runt= 15888msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  256, avg=20.88, stdev=42.33
    bw (KiB/s) : min=   15, max=35544, per=111.78%, avg=17006.91, stdev=14256.24
  write: io=86,676KiB, bw=6,802KiB/s, runt= 13047msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  170, avg= 0.65, stdev= 8.29
    bw (KiB/s) : min=    0, max=57507, per=161.76%, avg=30897.75, stdev=30437.56
  cpu          : usr=10.27%, sys=4.28%, ctx=11051
  IO depths    : 1=48.5%, 2=15.7%, 4=25.3%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.4%, 4=12.1%, 10=20.4%, 20=1.9%, 50=0.9%, 100=2.9%
     lat (msec): 250=5.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26820
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=51.1%, 2=18.9%, 4=6.7%, 8=23.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=62.3%, 4=6.8%, 10=1.1%, 20=2.0%, 50=6.7%, 100=7.2%
     lat (msec): 250=12.2%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=231MiB, aggrb=15,214KiB/s, minb=0KiB/s, maxb=6,628KiB/s, mint=0msec, maxt=15888msec
  WRITE: io=238MiB, aggrb=19,101KiB/s, minb=0KiB/s, maxb=6,802KiB/s, mint=0msec, maxt=15888msec

Disk stats (read/write):
  cciss!c0d0: ios=4628/3148, merge=949/57610, ticks=39952/1349404, in_queue=1390100, util=98.08%
4.48user 1.88system 0:16.20elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
568432inputs+486776outputs (0major+2449minor)pagefaults 0swaps