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: [mFm] [33.3% done] [  9916/ 60528 kb/s] [eta 00m:06s]
Threads: 3: [FFm] [50.0% done] [  3206/ 22905 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=31743, got signal=6
Threads: 2: [FF_] [100.0% done] [  1293/ 31791 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: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [70.6% done] [ 10394/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [86.7% done] [ 61939/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 60093/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=31741
  read : io=100MiB, bw=7,160KiB/s, runt= 14644msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  307, avg=20.02, stdev=40.52
    bw (KiB/s) : min=    0, max=35989, per=110.57%, avg=17522.09, stdev=15520.72
  write: io=87,800KiB, bw=7,601KiB/s, runt= 11827msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  109, avg= 1.43, stdev= 5.25
    bw (KiB/s) : min=    0, max=62693, per=153.92%, avg=34602.50, stdev=31693.42
  cpu          : usr=12.62%, sys=5.41%, ctx=5874
  IO depths    : 1=1.8%, 2=58.3%, 4=28.1%, 8=11.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.5%, 4=19.8%, 10=24.2%, 20=3.1%, 50=1.5%, 100=3.2%
     lat (msec): 250=4.4%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31742
  read : io=100MiB, bw=7,021KiB/s, runt= 14934msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  230, avg=16.53, stdev=36.35
    bw (KiB/s) : min=    5, max=43142, per=113.53%, avg=17991.56, stdev=16001.54
  write: io=95,928KiB, bw=8,302KiB/s, runt= 11832msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   77, avg= 0.63, stdev= 3.07
    bw (KiB/s) : min=    0, max=60534, per=157.51%, avg=35409.75, stdev=29038.41
  cpu          : usr=12.78%, sys=4.98%, ctx=8165
  IO depths    : 1=23.8%, 2=42.6%, 4=24.2%, 8=9.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.1%, 4=19.1%, 10=19.7%, 20=2.6%, 50=1.0%, 100=3.5%
     lat (msec): 250=2.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31743
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=77.8%, 4=5.5%, 8=16.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.6%, 4=10.7%, 10=4.0%, 20=1.5%, 50=2.0%, 100=9.1%
     lat (msec): 250=5.9%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=226MiB, aggrb=15,847KiB/s, minb=0KiB/s, maxb=7,160KiB/s, mint=0msec, maxt=14934msec
  WRITE: io=254MiB, aggrb=22,481KiB/s, minb=0KiB/s, maxb=8,302KiB/s, mint=0msec, maxt=14934msec

Disk stats (read/write):
  cciss!c0d0: ios=4307/3140, merge=1298/61684, ticks=31820/1356048, in_queue=1389960, util=97.40%
5.00user 2.04system 0:15.27elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
535296inputs+519560outputs (0major+2451minor)pagefaults 0swaps