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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5043, got signal=6
Threads: 2: [_mm] [15.0% done] [ 15648/   434 kb/s] [eta 00m:17s]
Threads: 2: [_mm] [40.0% done] [  9127/ 80032 kb/s] [eta 00m:06s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=5044, got signal=6
Threads: 1: [__F] [100.0% done] [  1919/ 49302 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: [__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: [__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] [93.8% done] [ 41484/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=5043
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=92.0%, 4=2.2%, 8=5.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=74.2%, 4=16.6%, 10=1.9%, 20=1.1%, 50=3.5%, 100=1.9%
     lat (msec): 250=0.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5044
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=76.5%, 4=9.6%, 8=13.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.4%, 4=12.2%, 10=1.9%, 20=2.5%, 50=2.1%, 100=5.0%
     lat (msec): 250=7.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5045
  read : io=100MiB, bw=6,685KiB/s, runt= 15684msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  437, avg=19.19, stdev=41.79
    bw (KiB/s) : min=   10, max=60462, per=210.16%, avg=17796.60, stdev=22090.14
  write: io=71,888KiB, bw=5,133KiB/s, runt= 14339msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   59, avg= 0.48, stdev= 2.80
    bw (KiB/s) : min=    0, max=83869, per=235.57%, avg=41934.50, stdev=59304.34
  cpu          : usr=6.35%, sys=4.44%, ctx=7492
  IO depths    : 1=14.1%, 2=43.9%, 4=27.4%, 8=14.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.5%, 4=16.0%, 10=23.7%, 20=1.9%, 50=1.2%, 100=4.0%
     lat (msec): 250=3.5%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=127MiB, aggrb=8,468KiB/s, minb=0KiB/s, maxb=6,685KiB/s, mint=15684msec, maxt=15684msec
  WRITE: io=243MiB, aggrb=17,801KiB/s, minb=0KiB/s, maxb=5,133KiB/s, mint=15684msec, maxt=15684msec

Disk stats (read/write):
  cciss!c0d0: ios=3007/3691, merge=648/58526, ticks=22444/1495344, in_queue=1518008, util=94.21%
3.75user 1.41system 0:16.03elapsed 32%CPU (0avgtext+0avgdata 0maxresident)k
362664inputs+498584outputs (0major+2469minor)pagefaults 0swaps