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] [21.4% done] [ 11108/ 38641 kb/s] [eta 00m:11s]
Threads: 3: [mFm] [22.2% done] [  1553/ 28907 kb/s] [eta 00m:14s]
Threads: 3: [mFm] [21.7% done] [  1236/     0 kb/s] [eta 00m:18s]
Threads: 3: [mFm] [22.2% done] [  1285/     0 kb/s] [eta 00m:21s]
Threads: 3: [mFm] [23.3% done] [  1358/   146 kb/s] [eta 00m:23s]
Threads: 3: [mFm] [22.9% done] [   500/     0 kb/s] [eta 00m:27s]
Threads: 3: [FFm] [34.6% done] [   874/ 42888 kb/s] [eta 00m:17s]
Threads: 3: [FFm] [58.8% done] [   109/ 33390 kb/s] [eta 00m:07s]
Threads: 3: [FVm] [57.9% done] [  1561/     0 kb/s] [eta 00m:08s]
Threads: 3: [FVm] [57.1% done] [  1871/     0 kb/s] [eta 00m:09s]
Threads: 3: [FVm] [59.1% done] [ 10719/   247 kb/s] [eta 00m:09s]
Threads: 3: [FVm] [58.3% done] [ 27924/   182 kb/s] [eta 00m:10s]
Threads: 3: [VVm] [57.7% done] [ 27008/     0 kb/s] [eta 00m:11s]
Threads: 3: [VVm] [59.3% done] [ 25047/     0 kb/s] [eta 00m:11s]
Threads: 3: [VVm] [60.7% done] [ 22676/  1883 kb/s] [eta 00m:11s]
Threads: 3: [VVm] [60.0% done] [ 25308/     0 kb/s] [eta 00m:12s]
Threads: 3: [VVm] [61.3% done] [ 24295/     0 kb/s] [eta 00m:12s]
Threads: 2: [VEm] [62.5% done] [ 24661/   203 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
Threads: 1: [EEF] [100.0% done] [  9325/     0 kb/s] [eta 00m:00s]
fio: pid=4530, got signal=6

fio: (groupid=0): err= 0: pid=4528
  read : io=100MiB, bw=5,168KiB/s, runt= 20289msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1674, avg=55.19, stdev=133.17
    bw (KiB/s) : min=    0, max=26318, per=63.92%, avg=7661.36, stdev=7585.38
  write: io=86,540KiB, bw=6,297KiB/s, runt= 14071msec
    slat (msec): min=    0, max=    7, avg= 0.02, stdev= 0.31
    clat (msec): min=    0, max= 1387, avg= 5.96, stdev=72.34
    bw (KiB/s) : min=    0, max=57163, per=113.08%, avg=20827.83, stdev=26321.26
  cpu          : usr=7.24%, sys=4.50%, ctx=12351
  IO depths    : 1=50.6%, 2=6.7%, 4=26.5%, 8=16.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.0%, 4=2.7%, 10=8.9%, 20=12.6%, 50=12.1%, 100=2.9%
     lat (msec): 250=6.9%, 500=0.7%, 750=0.4%, 1000=0.4%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=4529
  read : io=99MiB, bw=5,375KiB/s, runt= 19396msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  691, avg=45.68, stdev=83.01
    bw (KiB/s) : min=    3, max=30163, per=78.75%, avg=9438.47, stdev=9204.73
  write: io=97,564KiB, bw=9,475KiB/s, runt= 10544msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   86, avg= 0.65, stdev= 5.68
    bw (KiB/s) : min=    0, max=57597, per=145.38%, avg=26777.25, stdev=23639.49
  cpu          : usr=8.97%, sys=4.27%, ctx=10580
  IO depths    : 1=39.4%, 2=16.5%, 4=29.7%, 8=14.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.5%, 4=5.3%, 10=9.8%, 20=12.2%, 50=13.8%, 100=1.5%
     lat (msec): 250=5.6%, 500=1.7%, 750=0.2%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4530
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=49.8%, 2=11.2%, 4=12.9%, 8=26.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.5%, 4=3.6%, 10=1.1%, 20=5.5%, 50=10.7%, 100=3.1%
     lat (msec): 250=8.5%, 500=4.1%, 750=2.7%, 1000=1.4%, >=2000=2.1%

Run status group 0 (all jobs):
   READ: io=232MiB, aggrb=11,985KiB/s, minb=0KiB/s, maxb=5,375KiB/s, mint=0msec, maxt=20289msec
  WRITE: io=247MiB, aggrb=18,419KiB/s, minb=0KiB/s, maxb=9,475KiB/s, mint=0msec, maxt=20289msec

Disk stats (read/write):
  cciss!c0d0: ios=4489/3860, merge=43/59465, ticks=95348/1504280, in_queue=1599620, util=98.09%
4.38user 2.20system 0:21.86elapsed 30%CPU (0avgtext+0avgdata 0maxresident)k
544256inputs+506248outputs (0major+2469minor)pagefaults 0swaps