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: [mmm] [12.5% done] [ 16550/  6485 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [16.0% done] [ 13223/  8248 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [20.0% done] [ 16530/  4510 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [25.0% done] [ 12373/  6627 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [28.0% done] [ 10079/  6735 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [32.0% done] [ 13430/  4661 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [36.0% done] [  9935/  6509 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [40.0% done] [ 15546/  2523 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [44.0% done] [  8484/  7187 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [46.2% done] [ 10128/  5011 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [50.0% done] [  7899/  4266 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [51.9% done] [  9729/  3892 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [55.6% done] [  7813/  4510 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [57.1% done] [  5263/  5478 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [58.6% done] [  3584/  6298 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [60.0% done] [  4209/  3384 kb/s] [eta 00m:12s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17093, got signal=6
Threads: 2: [mm_] [63.3% done] [  7903/  1037 kb/s] [eta 00m:11s]
Threads: 2: [mm_] [64.5% done] [  6320/  1366 kb/s] [eta 00m:11s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=17092, got signal=6
Threads: 1: [m__] [67.7% done] [  5548/  1773 kb/s] [eta 00m:10s]
Threads: 1: [V__] [84.6% done] [ 26727/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=17091
  read : io=100MiB, bw=4,572KiB/s, runt= 22825msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    1, max=  458, avg=67.16, stdev=56.04
    bw (KiB/s) : min=   41, max=29299, per=51.49%, avg=5633.06, stdev=7207.89
  write: io=40,492KiB, bw=1,956KiB/s, runt= 21191msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=   27, max=  492, avg=112.56, stdev=49.90
    bw (KiB/s) : min=    0, max= 7093, per=57.95%, avg=2886.04, stdev=2293.23
  cpu          : usr=0.37%, sys=0.56%, ctx=7860
  IO depths    : 1=0.1%, 2=1.1%, 4=16.8%, 8=82.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.1%, 4=0.8%, 10=6.6%, 20=9.9%, 50=16.8%, 100=30.9%
     lat (msec): 250=33.4%, 500=1.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17092
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.1%, 4=4.8%, 8=94.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.0%, 20=0.6%, 50=10.2%, 100=41.6%
     lat (msec): 250=46.1%, 500=1.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17093
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.1%, 2=0.2%, 4=5.5%, 8=94.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=0.0%, 4=0.0%, 10=0.2%, 20=2.2%, 50=7.7%, 100=53.1%
     lat (msec): 250=35.9%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=238MiB, aggrb=10,940KiB/s, minb=0KiB/s, maxb=4,572KiB/s, mint=0msec, maxt=22825msec
  WRITE: io=101MiB, aggrb=4,980KiB/s, minb=0KiB/s, maxb=1,956KiB/s, mint=0msec, maxt=22825msec

Disk stats (read/write):
  cciss!c0d0: ios=4510/2170, merge=841/98, ticks=48584/31752, in_queue=80328, util=98.85%
0.24user 0.47system 0:23.16elapsed 3%CPU (0avgtext+0avgdata 0maxresident)k
487992inputs+206160outputs (0major+2450minor)pagefaults 0swaps