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] [ 12914/ 56213 kb/s] [eta 00m:03s]
Threads: 3: [Fmm] [50.0% done] [  6890/ 12930 kb/s] [eta 00m:04s]
Threads: 3: [Fmm] [55.6% done] [  3132/ 21223 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25552, got signal=6
Threads: 2: [F_m] [66.7% done] [  1533/ 18730 kb/s] [eta 00m:03s]
Threads: 2: [F_m] [63.6% done] [  1232/     0 kb/s] [eta 00m:04s]
Threads: 2: [F_m] [66.7% done] [  2159/     0 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [  3209/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=25551, got signal=6
Threads: 1: [__V] [77.8% done] [ 12857/     0 kb/s] [eta 00m:04s]
Threads: 1: [__V] [100.0% done] [ 58930/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=25551
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=88.2%, 4=2.4%, 8=9.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.6%, 4=17.9%, 10=2.3%, 20=0.2%, 50=0.7%, 100=8.3%
     lat (msec): 250=1.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25552
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=77.3%, 4=4.6%, 8=17.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.0%, 4=12.1%, 10=1.3%, 20=0.5%, 50=2.8%, 100=9.5%
     lat (msec): 250=7.2%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=25553
  read : io=99MiB, bw=6,847KiB/s, runt= 15211msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  326, avg=38.14, stdev=62.20
    bw (KiB/s) : min=    1, max=61259, per=97.33%, avg=9070.58, stdev=18437.02
  write: io=74,856KiB, bw=5,548KiB/s, runt= 13815msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  130, avg= 1.73, stdev= 8.14
    bw (KiB/s) : min=    0, max=26935, per=62.54%, avg=11256.33, stdev=14001.48
  cpu          : usr=10.33%, sys=5.10%, ctx=5756
  IO depths    : 1=0.7%, 2=47.7%, 4=27.9%, 8=23.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=34.1%, 4=13.7%, 10=23.3%, 20=7.4%, 50=5.8%, 100=8.4%
     lat (msec): 250=5.4%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=135MiB, aggrb=9,319KiB/s, minb=0KiB/s, maxb=6,847KiB/s, mint=15211msec, maxt=15211msec
  WRITE: io=237MiB, aggrb=18,000KiB/s, minb=0KiB/s, maxb=5,548KiB/s, mint=15211msec, maxt=15211msec

Disk stats (read/write):
  cciss!c0d0: ios=3058/3395, merge=666/57195, ticks=22648/1505888, in_queue=1528604, util=96.79%
4.55user 1.84system 0:15.54elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
346216inputs+485728outputs (0major+2459minor)pagefaults 0swaps