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] [50.0% done] [ 13458/ 77962 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [50.0% done] [  2623/ 19373 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [55.6% done] [  2200/     0 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [66.7% done] [   793/ 22611 kb/s] [eta 00m:03s]
Threads: 3: [FFF] [100.0% done] [   158/  2322 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]
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.
Threads: 3: [VVV] [68.4% done] [ 21089/     0 kb/s] [eta 00m:06s]
fio: pid=18764, got signal=6
Threads: 2: [VV_] [100.0% done] [ 67362/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 67146/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=18762
  read : io=100MiB, bw=6,867KiB/s, runt= 15264msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  343, avg=31.05, stdev=55.15
    bw (KiB/s) : min=    3, max=35425, per=69.58%, avg=10097.24, stdev=12673.13
  write: io=79,208KiB, bw=6,421KiB/s, runt= 12631msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  235, avg= 2.04, stdev=13.41
    bw (KiB/s) : min=    0, max=20279, per=55.42%, avg=11529.25, stdev=9697.38
  cpu          : usr=10.90%, sys=5.24%, ctx=5666
  IO depths    : 1=2.2%, 2=54.6%, 4=26.2%, 8=16.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.9%, 4=17.1%, 10=18.9%, 20=3.8%, 50=3.9%, 100=5.2%
     lat (msec): 250=6.2%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18763
  read : io=100MiB, bw=6,817KiB/s, runt= 15376msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  177, avg=17.72, stdev=33.40
    bw (KiB/s) : min=    4, max=40763, per=127.32%, avg=18476.44, stdev=16524.92
  write: io=88,176KiB, bw=7,148KiB/s, runt= 12631msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.03
    clat (msec): min=    0, max=  112, avg= 1.31, stdev= 5.98
    bw (KiB/s) : min=    0, max=60653, per=162.54%, avg=33812.00, stdev=30593.53
  cpu          : usr=12.72%, sys=5.57%, ctx=5860
  IO depths    : 1=3.9%, 2=59.8%, 4=24.7%, 8=11.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.1%, 4=20.7%, 10=19.4%, 20=2.3%, 50=0.4%, 100=5.4%
     lat (msec): 250=3.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18764
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.7%, 2=86.3%, 4=4.1%, 8=8.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=70.7%, 4=16.0%, 10=3.8%, 20=0.1%, 50=0.2%, 100=6.7%
     lat (msec): 250=2.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=213MiB, aggrb=14,512KiB/s, minb=0KiB/s, maxb=6,867KiB/s, mint=0msec, maxt=15376msec
  WRITE: io=251MiB, aggrb=20,802KiB/s, minb=0KiB/s, maxb=7,148KiB/s, mint=0msec, maxt=15376msec

Disk stats (read/write):
  cciss!c0d0: ios=2610/3193, merge=6554/60905, ticks=237280/1420036, in_queue=1658696, util=95.91%
5.18user 2.35system 0:16.14elapsed 46%CPU (0avgtext+0avgdata 0maxresident)k
512096inputs+513224outputs (0major+2452minor)pagefaults 0swaps