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: [mmF] [8.1% done] [  3437/ 43380 kb/s] [eta 00m:34s]
Threads: 3: [mmF] [8.3% done] [   724/     0 kb/s] [eta 00m:44s]
Threads: 3: [mmF] [9.6% done] [  3328/   247 kb/s] [eta 00m:47s]
Threads: 3: [mmF] [14.3% done] [  3888/ 11020 kb/s] [eta 00m:36s]
Threads: 3: [mmV] [18.4% done] [ 30115/ 26979 kb/s] [eta 00m:31s]
Threads: 3: [mmV] [26.7% done] [ 30982/ 17392 kb/s] [eta 00m:22s]
Threads: 3: [mmV] [28.1% done] [ 27789/   252 kb/s] [eta 00m:23s]
Threads: 2: [mm_] [28.6% done] [ 20378/   374 kb/s] [eta 00m:25s]
Threads: 2: [mm_] [47.8% done] [  1044/ 28984 kb/s] [eta 00m:12s]
Threads: 2: [mm_] [48.0% done] [  1411/     0 kb/s] [eta 00m:13s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=14978, got signal=6
Threads: 1: [_m_] [56.5% done] [ 11498/ 24100 kb/s] [eta 00m:10s]
Threads: 1: [_F_] [100.0% done] [  7813/ 10392 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [72.0% done] [  4815/     0 kb/s] [eta 00m:07s]
Threads: 1: [_V_] [79.2% done] [ 13097/     0 kb/s] [eta 00m:05s]
Threads: 1: [_V_] [90.9% done] [ 18942/     0 kb/s] [eta 00m:02s]
Threads: 1: [_V_] [100.0% done] [ 20382/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=14978
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=10.8%, 2=74.2%, 4=4.6%, 8=10.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=76.6%, 4=7.6%, 10=1.1%, 20=1.3%, 50=0.8%, 100=0.8%
     lat (msec): 250=5.3%, 500=2.8%, 750=1.5%, 1000=0.8%, >=2000=1.2%
fio: (groupid=0): err= 0: pid=14979
  read : io=100MiB, bw=4,895KiB/s, runt= 21413msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1835, avg=70.90, stdev=157.69
    bw (KiB/s) : min=   57, max=19901, per=56.88%, avg=6000.13, stdev=6543.44
  write: io=59,820KiB, bw=3,431KiB/s, runt= 17851msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1045, avg=11.23, stdev=72.13
    bw (KiB/s) : min=    0, max= 8978, per=25.04%, avg=3539.00, stdev=3287.10
  cpu          : usr=5.14%, sys=3.53%, ctx=7840
  IO depths    : 1=6.0%, 2=32.0%, 4=30.3%, 8=31.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=32.5%, 4=3.9%, 10=4.3%, 20=14.9%, 50=30.1%, 100=5.4%
     lat (msec): 250=3.2%, 500=3.1%, 750=1.2%, 1000=0.5%, >=2000=0.3%
fio: (groupid=0): err= 0: pid=14980
  read : io=100MiB, bw=10,659KiB/s, runt=  9837msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  296, avg=19.09, stdev=27.49
    bw (KiB/s) : min=    0, max=29523, per=187.40%, avg=19766.60, stdev=12943.39
  write: io=98MiB, bw=17,002KiB/s, runt=  6023msec
    slat (msec): min=    0, max=    2, avg= 0.00, stdev= 0.06
    clat (msec): min=    0, max=  176, avg= 1.27, stdev= 8.01
    bw (KiB/s) : min=    0, max=69230, per=265.91%, avg=37578.00, stdev=31264.33
  cpu          : usr=17.85%, sys=8.38%, ctx=4677
  IO depths    : 1=0.7%, 2=56.4%, 4=30.4%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.2%, 4=12.2%, 10=16.2%, 20=10.5%, 50=16.7%, 100=1.3%
     lat (msec): 250=0.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=215MiB, aggrb=10,548KiB/s, minb=0KiB/s, maxb=10,659KiB/s, mint=9837msec, maxt=21413msec
  WRITE: io=241MiB, aggrb=14,132KiB/s, minb=0KiB/s, maxb=17,002KiB/s, mint=9837msec, maxt=21413msec

Disk stats (read/write):
  cciss!c0d0: ios=4331/3815, merge=44/57853, ticks=69396/1363072, in_queue=1432560, util=97.21%
4.33user 2.02system 0:21.77elapsed 29%CPU (0avgtext+0avgdata 0maxresident)k
523040inputs+492864outputs (0major+2472minor)pagefaults 0swaps