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] [42.9% done] [  6326/ 16607 kb/s] [eta 00m:04s]
Threads: 3: [mFF] [66.7% done] [  2505/ 56375 kb/s] [eta 00m:02s]
Threads: 3: [mFF] [71.4% done] [  1263/  1836 kb/s] [eta 00m:02s]
Threads: 3: [mFF] [66.7% done] [  1179/     0 kb/s] [eta 00m:03s]
Threads: 3: [mFF] [70.0% done] [   666/     0 kb/s] [eta 00m:03s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=327, got signal=6
Threads: 2: [_FF] [100.0% done] [  1033/     0 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [85.7% done] [ 27480/     0 kb/s] [eta 00m:02s]
fio: (groupid=0): err= 0: pid=327
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=81.3%, 2=0.6%, 4=3.3%, 8=14.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=81.0%, 4=0.1%, 10=0.4%, 20=0.4%, 50=2.0%, 100=1.9%
     lat (msec): 250=10.2%, 500=3.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=328
  read : io=100MiB, bw=7,965KiB/s, runt= 13120msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  327, avg=16.64, stdev=46.27
    bw (KiB/s) : min=   13, max=68428, per=193.23%, avg=17441.22, stdev=28565.53
  write: io=91,000KiB, bw=8,025KiB/s, runt= 11611msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  155, avg= 0.78, stdev= 7.08
    bw (KiB/s) : min=    0, max=57850, per=105.93%, avg=26362.67, stdev=29263.50
  cpu          : usr=9.82%, sys=5.70%, ctx=8329
  IO depths    : 1=30.6%, 2=33.0%, 4=26.0%, 8=10.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.2%, 4=15.7%, 10=22.3%, 20=2.2%, 50=1.0%, 100=0.9%
     lat (msec): 250=3.0%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=329
  read : io=0KiB, bw=0KiB/s, runt= 11633msec
  write: io=100MiB, bw=9,062KiB/s, runt= 11571msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=115916, per=232.38%, avg=57832.00, stdev=57958.41
  cpu          : usr=8.15%, sys=2.79%, ctx=9801
  IO depths    : 1=99.9%, 2=0.1%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.8%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=113MiB, aggrb=9,026KiB/s, minb=0KiB/s, maxb=7,965KiB/s, mint=11633msec, maxt=13120msec
  WRITE: io=276MiB, aggrb=24,887KiB/s, minb=0KiB/s, maxb=9,062KiB/s, mint=11633msec, maxt=13120msec

Disk stats (read/write):
  cciss!c0d0: ios=2273/3482, merge=388/67026, ticks=17476/1459660, in_queue=1478368, util=90.19%
3.59user 1.53system 0:13.44elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
267672inputs+564416outputs (0major+2446minor)pagefaults 0swaps