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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=7932, got signal=6
Threads: 2
Threads: 2: [m_m] [75.0% done] [ 12361/ 46067 kb/s] [eta 00m:01s]
Threads: 2: [F_m] [66.7% done] [  1531/  5839 kb/s] [eta 00m:02s]
Threads: 2: [F_F] [100.0% done] [   276/  7207 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]
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: [V_V] [68.4% done] [ 15916/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [87.5% done] [ 62981/     0 kb/s] [eta 00m:02s]
Threads: 1: [__V] [100.0% done] [ 55546/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=7931
  read : io=100MiB, bw=6,958KiB/s, runt= 15070msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  139, avg=17.95, stdev=29.07
    bw (KiB/s) : min=    3, max=59121, per=146.34%, avg=19656.50, stdev=18591.49
  write: io=80,908KiB, bw=6,485KiB/s, runt= 12775msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   63, avg= 0.69, stdev= 2.91
    bw (KiB/s) : min=    0, max=101572, per=191.00%, avg=40590.00, stdev=49738.44
  cpu          : usr=9.13%, sys=5.20%, ctx=6146
  IO depths    : 1=0.8%, 2=56.3%, 4=28.4%, 8=14.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.4%, 4=15.7%, 10=22.3%, 20=3.5%, 50=2.0%, 100=7.0%
     lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7932
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=98.8%, 4=1.1%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=81.5%, 4=16.1%, 10=2.2%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=7933
  read : io=100MiB, bw=6,716KiB/s, runt= 15612msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  408, avg=25.79, stdev=48.56
    bw (KiB/s) : min=    0, max=59064, per=109.37%, avg=14690.38, stdev=16563.34
  write: io=81,872KiB, bw=6,562KiB/s, runt= 12775msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  231, avg= 1.18, stdev=12.61
    bw (KiB/s) : min=    0, max=60375, per=117.48%, avg=24964.67, stdev=31513.79
  cpu          : usr=9.12%, sys=4.38%, ctx=10516
  IO depths    : 1=43.1%, 2=17.0%, 4=23.2%, 8=16.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.7%, 4=8.1%, 10=17.2%, 20=4.7%, 50=6.9%, 100=6.5%
     lat (msec): 250=3.0%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=200MiB, aggrb=13,432KiB/s, minb=0KiB/s, maxb=6,958KiB/s, mint=15612msec, maxt=15612msec
  WRITE: io=259MiB, aggrb=21,251KiB/s, minb=0KiB/s, maxb=6,562KiB/s, mint=15612msec, maxt=15612msec

Disk stats (read/write):
  cciss!c0d0: ios=4115/3558, merge=769/62624, ticks=22212/1392984, in_queue=1417684, util=96.69%
4.29user 1.86system 0:15.95elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
501720inputs+530384outputs (0major+2450minor)pagefaults 0swaps