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: [mmF] [60.0% done] [ 10673/103555 kb/s] [eta 00m:02s]
Threads: 3: [mFF] [66.7% done] [  1247/  4681 kb/s] [eta 00m:02s]
Threads: 3: [mFF] [62.5% done] [  1214/     0 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [66.7% done] [  1094/     0 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [63.6% done] [   715/     0 kb/s] [eta 00m:04s]
Threads: 3: [FFF] [100.0% done] [   284/  8338 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26690, got signal=6
Threads: 2: [V_V] [86.7% done] [ 52447/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 63134/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [100.0% done] [ 61090/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=26689
  read : io=100MiB, bw=6,905KiB/s, runt= 15181msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  405, avg=39.01, stdev=76.24
    bw (KiB/s) : min=    7, max=33134, per=60.28%, avg=8802.90, stdev=12176.07
  write: io=85,876KiB, bw=7,215KiB/s, runt= 12187msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  291, avg= 1.77, stdev=14.88
    bw (KiB/s) : min=    0, max=26171, per=52.11%, avg=11691.00, stdev=11480.86
  cpu          : usr=11.28%, sys=5.35%, ctx=7573
  IO depths    : 1=16.7%, 2=42.3%, 4=25.5%, 8=15.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.2%, 4=12.7%, 10=22.2%, 20=4.4%, 50=3.1%, 100=3.6%
     lat (msec): 250=6.1%, 500=2.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26690
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=77.8%, 2=11.5%, 4=2.5%, 8=8.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=88.7%, 4=0.0%, 10=0.1%, 20=1.1%, 50=4.8%, 100=1.5%
     lat (msec): 250=3.3%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26691
  read : io=100MiB, bw=6,937KiB/s, runt= 15107msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  255, avg=17.37, stdev=38.46
    bw (KiB/s) : min=    6, max=36797, per=127.56%, avg=18627.20, stdev=15339.39
  write: io=90,528KiB, bw=7,606KiB/s, runt= 12187msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  118, avg= 0.40, stdev= 4.80
    bw (KiB/s) : min=    0, max=59834, per=123.99%, avg=27818.00, stdev=30137.09
  cpu          : usr=9.85%, sys=4.34%, ctx=8236
  IO depths    : 1=17.6%, 2=48.2%, 4=24.7%, 8=9.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=58.3%, 4=10.9%, 10=20.9%, 20=1.9%, 50=0.7%, 100=3.0%
     lat (msec): 250=3.9%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=211MiB, aggrb=14,603KiB/s, minb=0KiB/s, maxb=6,937KiB/s, mint=15107msec, maxt=15181msec
  WRITE: io=261MiB, aggrb=22,436KiB/s, minb=0KiB/s, maxb=7,606KiB/s, mint=15107msec, maxt=15181msec

Disk stats (read/write):
  cciss!c0d0: ios=4205/3237, merge=854/63513, ticks=33820/1355580, in_queue=1390080, util=95.37%
4.50user 2.02system 0:15.50elapsed 42%CPU (0avgtext+0avgdata 0maxresident)k
509768inputs+534080outputs (0major+2455minor)pagefaults 0swaps