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] [33.3% done] [ 15501/ 78674 kb/s] [eta 00m:06s]
Threads: 3: [mmm] [36.4% done] [ 14988/   992 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [50.0% done] [  6011/ 34329 kb/s] [eta 00m:05s]
Threads: 3: [mFF] [66.7% done] [   317/ 23860 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [70.0% done] [  1529/     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=31549, got signal=6
Threads: 2: [_FF] [100.0% done] [   724/     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] [ 24137/     0 kb/s] [eta 00m:05s]
Threads: 2: [_VV] [100.0% done] [ 63298/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 62172/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=31549
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=3.8%, 2=45.9%, 4=22.3%, 8=27.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=32.5%, 4=12.7%, 10=20.6%, 20=5.0%, 50=3.6%, 100=13.9%
     lat (msec): 250=10.2%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31550
  read : io=100MiB, bw=6,395KiB/s, runt= 16396msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  274, avg=27.23, stdev=42.29
    bw (KiB/s) : min=    1, max=36701, per=94.88%, avg=14028.50, stdev=13882.77
  write: io=81,928KiB, bw=6,149KiB/s, runt= 13643msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  206, avg= 2.93, stdev=13.69
    bw (KiB/s) : min=    0, max=60761, per=133.84%, avg=23832.00, stdev=26420.01
  cpu          : usr=10.66%, sys=4.59%, ctx=6090
  IO depths    : 1=1.1%, 2=54.1%, 4=27.9%, 8=17.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.4%, 4=16.4%, 10=21.2%, 20=5.6%, 50=4.0%, 100=7.1%
     lat (msec): 250=5.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31551
  read : io=100MiB, bw=6,365KiB/s, runt= 16472msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  211, avg=22.76, stdev=38.76
    bw (KiB/s) : min=   11, max=33470, per=81.10%, avg=11991.23, stdev=13405.23
  write: io=86,108KiB, bw=6,462KiB/s, runt= 13643msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  127, avg= 2.52, stdev= 9.26
    bw (KiB/s) : min=    0, max=24843, per=82.15%, avg=14629.00, stdev=10480.23
  cpu          : usr=10.95%, sys=5.17%, ctx=6031
  IO depths    : 1=2.2%, 2=53.9%, 4=30.4%, 8=13.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.9%, 4=18.3%, 10=24.0%, 20=4.7%, 50=0.8%, 100=5.8%
     lat (msec): 250=5.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=232MiB, aggrb=14,786KiB/s, minb=0KiB/s, maxb=6,395KiB/s, mint=16396msec, maxt=16472msec
  WRITE: io=232MiB, aggrb=17,807KiB/s, minb=0KiB/s, maxb=6,462KiB/s, mint=16396msec, maxt=16472msec

Disk stats (read/write):
  cciss!c0d0: ios=4748/3302, merge=1141/55861, ticks=38268/1323944, in_queue=1363308, util=98.18%
4.64user 2.08system 0:16.81elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
574232inputs+474536outputs (0major+2446minor)pagefaults 0swaps