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] [16.7% done] [  4900/     0 kb/s] [eta 00m:15s]
Threads: 3: [Fmm] [33.3% done] [  3620/ 20959 kb/s] [eta 00m:08s]
Threads: 3: [Fmm] [41.7% done] [  3640/ 11528 kb/s] [eta 00m:07s]
Threads: 3: [Fmm] [66.7% done] [  1712/ 45552 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=24428, got signal=6
Threads: 2: [F_m] [63.6% done] [  1007/  3271 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [   377/  5124 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: [V_F] [73.3% done] [  8208/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_F] [100.0% done] [ 53146/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [ 40005/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 49257/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=24427
  read : io=100MiB, bw=8,215KiB/s, runt= 12763msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  145, avg= 8.04, stdev=18.70
    bw (KiB/s) : min=    9, max=55615, per=167.26%, avg=25153.17, stdev=26134.57
  write: io=99,776KiB, bw=9,527KiB/s, runt= 10724msec
    slat (msec): min=    0, max=    4, avg= 0.00, stdev= 0.10
    clat (msec): min=    0, max=   55, avg= 0.72, stdev= 2.32
    bw (KiB/s) : min=    0, max=61390, per=173.85%, avg=35707.33, stdev=31899.11
  cpu          : usr=12.94%, sys=5.08%, ctx=5002
  IO depths    : 1=6.2%, 2=59.4%, 4=27.0%, 8=7.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.2%, 4=24.9%, 10=18.8%, 20=1.2%, 50=0.9%, 100=2.5%
     lat (msec): 250=0.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24428
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=82.7%, 4=4.1%, 8=13.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=73.5%, 4=10.8%, 10=1.7%, 20=0.1%, 50=0.3%, 100=2.7%
     lat (msec): 250=8.7%, 500=2.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=24429
  read : io=100MiB, bw=7,222KiB/s, runt= 14516msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  346, avg=31.61, stdev=68.00
    bw (KiB/s) : min=    9, max=62061, per=73.23%, avg=11012.31, stdev=18466.49
  write: io=70,476KiB, bw=5,480KiB/s, runt= 13168msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  238, avg= 2.01, stdev=14.20
    bw (KiB/s) : min=    0, max=60997, per=99.55%, avg=20446.25, stdev=27559.22
  cpu          : usr=10.09%, sys=4.68%, ctx=5686
  IO depths    : 1=1.8%, 2=56.0%, 4=25.4%, 8=16.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.2%, 4=13.2%, 10=24.0%, 20=4.4%, 50=1.5%, 100=5.3%
     lat (msec): 250=3.0%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=208MiB, aggrb=15,038KiB/s, minb=0KiB/s, maxb=8,215KiB/s, mint=14516msec, maxt=14516msec
  WRITE: io=258MiB, aggrb=20,539KiB/s, minb=0KiB/s, maxb=9,527KiB/s, mint=14516msec, maxt=14516msec

Disk stats (read/write):
  cciss!c0d0: ios=2502/3213, merge=9197/62739, ticks=144060/1561380, in_queue=1707552, util=97.51%
4.46user 1.68system 0:14.89elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
493696inputs+528536outputs (0major+2444minor)pagefaults 0swaps