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] [27.3% done] [ 17437/ 22989 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [44.4% done] [ 16522/ 46028 kb/s] [eta 00m:05s]
Threads: 3: [mmF] [62.5% done] [  8159/ 70315 kb/s] [eta 00m:03s]
Threads: 3: [FmF] [60.0% done] [   976/ 14634 kb/s] [eta 00m:04s]
Threads: 3: [FmF] [70.0% done] [  1113/ 10483 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=30455, got signal=6
Threads: 2: [F_F] [100.0% done] [     0/  1427 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]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [70.0% done] [ 15896/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [88.2% done] [ 61679/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 56583/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=30454
  read : io=100MiB, bw=6,423KiB/s, runt= 16324msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  315, avg=28.53, stdev=48.39
    bw (KiB/s) : min=   21, max=39706, per=87.81%, avg=12309.14, stdev=12220.70
  write: io=75,044KiB, bw=5,611KiB/s, runt= 13695msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  171, avg= 1.69, stdev=11.67
    bw (KiB/s) : min=    0, max=56311, per=114.52%, avg=19974.25, stdev=24917.46
  cpu          : usr=9.31%, sys=4.36%, ctx=9566
  IO depths    : 1=30.8%, 2=25.2%, 4=26.8%, 8=17.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=44.9%, 4=12.3%, 10=20.8%, 20=5.9%, 50=5.0%, 100=3.5%
     lat (msec): 250=6.9%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30455
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=52.7%, 2=26.3%, 4=4.1%, 8=16.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=78.2%, 4=0.5%, 10=0.1%, 20=0.4%, 50=1.0%, 100=8.4%
     lat (msec): 250=9.0%, 500=2.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30456
  read : io=100MiB, bw=6,332KiB/s, runt= 16558msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  439, avg=26.58, stdev=51.02
    bw (KiB/s) : min=    2, max=38549, per=103.41%, avg=14495.38, stdev=13315.60
  write: io=77,748KiB, bw=5,815KiB/s, runt= 13691msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  120, avg= 1.19, stdev= 6.61
    bw (KiB/s) : min=    0, max=61063, per=139.42%, avg=24316.67, stdev=32373.52
  cpu          : usr=10.22%, sys=3.96%, ctx=6276
  IO depths    : 1=1.1%, 2=58.7%, 4=26.8%, 8=13.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.5%, 4=15.8%, 10=23.4%, 20=3.7%, 50=1.0%, 100=4.0%
     lat (msec): 250=6.0%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=221MiB, aggrb=14,018KiB/s, minb=0KiB/s, maxb=6,423KiB/s, mint=16558msec, maxt=16558msec
  WRITE: io=228MiB, aggrb=17,441KiB/s, minb=0KiB/s, maxb=5,815KiB/s, mint=16558msec, maxt=16558msec

Disk stats (read/write):
  cciss!c0d0: ios=4683/3097, merge=1166/55176, ticks=44368/1341548, in_queue=1386316, util=97.95%
4.46user 1.84system 0:16.88elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
576496inputs+466632outputs (0major+2449minor)pagefaults 0swaps