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=32541, got signal=6
Threads: 2: [mF_] [50.0% done] [  1810/ 23786 kb/s] [eta 00m:03s]
Threads: 2: [mF_] [44.4% done] [  1966/     0 kb/s] [eta 00m:05s]
Threads: 2: [mF_] [45.5% done] [  1610/     0 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [54.5% done] [   964/ 10921 kb/s] [eta 00m:05s]
Threads: 2: [mF_] [53.8% done] [   927/     0 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [57.1% done] [  1004/     0 kb/s] [eta 00m:06s]
Threads: 2: [FF_] [100.0% done] [    24/ 19609 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [75.0% done] [ 36392/     0 kb/s] [eta 00m:04s]
Threads: 2: [VV_] [100.0% done] [ 69318/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 68594/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=32539
  read : io=100MiB, bw=7,277KiB/s, runt= 14409msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  425, avg=40.88, stdev=83.65
    bw (KiB/s) : min=    1, max=39575, per=59.54%, avg=9596.10, stdev=14311.30
  write: io=89,228KiB, bw=7,940KiB/s, runt= 11507msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  323, avg= 2.34, stdev=18.78
    bw (KiB/s) : min=    0, max=60770, per=73.38%, avg=17762.50, stdev=28783.00
  cpu          : usr=13.16%, sys=5.61%, ctx=6131
  IO depths    : 1=1.6%, 2=61.2%, 4=23.6%, 8=13.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.8%, 4=16.1%, 10=21.8%, 20=4.2%, 50=0.3%, 100=3.2%
     lat (msec): 250=4.7%, 500=3.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32540
  read : io=100MiB, bw=7,324KiB/s, runt= 14316msec
    clat (msec): min=    0, max=  189, avg=10.80, stdev=26.12
    bw (KiB/s) : min=   20, max=44369, per=191.67%, avg=30891.00, stdev=15682.23
  write: io=100MiB, bw=9,147KiB/s, runt= 11463msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.08
    clat (msec): min=    0, max=   16, avg= 0.64, stdev= 1.45
    bw (KiB/s) : min=    0, max=64897, per=194.82%, avg=47159.00, stdev=31484.56
  cpu          : usr=13.94%, sys=5.62%, ctx=8743
  IO depths    : 1=34.0%, 2=33.7%, 4=25.7%, 8=6.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.8%, 4=21.1%, 10=21.0%, 20=2.2%, 50=0.4%, 100=0.5%
     lat (msec): 250=3.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=32541
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=78.8%, 4=10.2%, 8=10.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=87.0%, 4=0.1%, 10=0.0%, 20=0.2%, 50=1.8%, 100=10.5%
     lat (msec): 250=0.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=221MiB, aggrb=16,117KiB/s, minb=0KiB/s, maxb=7,324KiB/s, mint=0msec, maxt=14409msec
  WRITE: io=266MiB, aggrb=24,206KiB/s, minb=0KiB/s, maxb=9,147KiB/s, mint=0msec, maxt=14409msec

Disk stats (read/write):
  cciss!c0d0: ios=4030/3443, merge=720/64418, ticks=30660/1417784, in_queue=1452840, util=97.83%
4.60user 1.97system 0:14.75elapsed 44%CPU (0avgtext+0avgdata 0maxresident)k
502904inputs+544072outputs (0major+2450minor)pagefaults 0swaps