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: [FmF] [60.0% done] [  1523/ 75585 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [66.7% done] [   614/ 12487 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [71.4% done] [  2233/     0 kb/s] [eta 00m:02s]
Threads: 3: [FmF] [66.7% done] [  2115/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17703, got signal=6
Threads: 2: [F_F] [100.0% done] [  3083/     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: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17702, got signal=6
Threads: 1: [__V] [100.0% done] [ 56884/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=17702
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.5%, 2=86.0%, 4=10.7%, 8=2.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.8%, 4=20.5%, 10=3.3%, 20=0.1%, 50=0.4%, 100=1.0%
     lat (msec): 250=1.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17703
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=8.3%, 2=58.0%, 4=9.5%, 8=24.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=58.1%, 4=8.1%, 10=1.6%, 20=3.4%, 50=10.1%, 100=10.5%
     lat (msec): 250=4.8%, 500=2.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17704
  read : io=100MiB, bw=7,648KiB/s, runt= 13710msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 8.14, stdev=19.82
    bw (KiB/s) : min=   23, max=68182, per=218.90%, avg=22150.71, stdev=31158.08
  write: io=91,736KiB, bw=7,700KiB/s, runt= 12199msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   59, avg= 0.69, stdev= 3.35
    bw (KiB/s) : min=    0, max=29663, per=88.41%, avg=19550.00, stdev=16934.17
  cpu          : usr=11.32%, sys=5.57%, ctx=7753
  IO depths    : 1=35.4%, 2=28.8%, 4=26.1%, 8=9.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=53.3%, 4=21.8%, 10=19.7%, 20=0.8%, 50=1.8%, 100=1.7%
     lat (msec): 250=0.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=132MiB, aggrb=10,119KiB/s, minb=0KiB/s, maxb=7,648KiB/s, mint=13710msec, maxt=13710msec
  WRITE: io=257MiB, aggrb=22,112KiB/s, minb=0KiB/s, maxb=7,700KiB/s, mint=13710msec, maxt=13710msec

Disk stats (read/write):
  cciss!c0d0: ios=1623/3382, merge=23160/62328, ticks=42108/1440212, in_queue=1483936, util=95.69%
4.26user 1.74system 0:14.02elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
292496inputs+526888outputs (0major+2460minor)pagefaults 0swaps