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=3276, got signal=6
Threads: 2: [m_m] [50.0% done] [ 11086/ 87527 kb/s] [eta 00m:03s]
Threads: 2: [m_m] [66.7% done] [  7285/ 25941 kb/s] [eta 00m:02s]
Threads: 2: [F_F] [100.0% done] [   682/  6131 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: [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] [68.2% done] [  3713/     0 kb/s] [eta 00m:07s]
Threads: 2: [V_V] [84.2% done] [ 65243/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 61082/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=3275
  read : io=100MiB, bw=5,946KiB/s, runt= 17629msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  145, avg=21.24, stdev=33.21
    bw (KiB/s) : min=    0, max=45674, per=126.21%, avg=15491.73, stdev=16267.17
  write: io=86,528KiB, bw=5,921KiB/s, runt= 14963msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   61, avg= 1.29, stdev= 3.49
    bw (KiB/s) : min=    0, max=59900, per=129.56%, avg=23231.67, stdev=32131.15
  cpu          : usr=9.96%, sys=4.22%, ctx=6414
  IO depths    : 1=1.8%, 2=54.0%, 4=29.0%, 8=15.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=39.4%, 4=17.9%, 10=24.1%, 20=5.3%, 50=3.5%, 100=5.6%
     lat (msec): 250=3.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3276
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=86.2%, 4=7.8%, 8=5.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=77.2%, 4=14.3%, 10=1.2%, 20=0.4%, 50=0.6%, 100=4.2%
     lat (msec): 250=1.8%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=3277
  read : io=100MiB, bw=5,859KiB/s, runt= 17896msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  448, avg=30.06, stdev=55.66
    bw (KiB/s) : min=    1, max=33077, per=94.47%, avg=11596.33, stdev=12319.55
  write: io=83,192KiB, bw=5,687KiB/s, runt= 14979msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  367, avg= 2.32, stdev=19.36
    bw (KiB/s) : min=    0, max=17934, per=60.48%, avg=10844.33, stdev=9538.36
  cpu          : usr=7.17%, sys=4.51%, ctx=6383
  IO depths    : 1=1.3%, 2=51.6%, 4=29.9%, 8=17.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.6%, 4=13.0%, 10=23.4%, 20=5.2%, 50=3.1%, 100=6.9%
     lat (msec): 250=4.8%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=12,275KiB/s, minb=0KiB/s, maxb=5,946KiB/s, mint=17896msec, maxt=17896msec
  WRITE: io=256MiB, aggrb=17,931KiB/s, minb=0KiB/s, maxb=5,921KiB/s, mint=17896msec, maxt=17896msec

Disk stats (read/write):
  cciss!c0d0: ios=4225/4040, merge=938/61483, ticks=27336/1635056, in_queue=1662468, util=96.37%
4.26user 2.03system 0:18.23elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
510280inputs+524736outputs (0major+2459minor)pagefaults 0swaps