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] [30.0% done] [ 14225/ 24740 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [40.0% done] [  4604/ 30456 kb/s] [eta 00m:06s]
Threads: 3: [mmF] [41.7% done] [  4536/ 13617 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [60.0% done] [  1284/ 59128 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=22393, got signal=6
Threads: 2: [_FF] [100.0% done] [   364/ 11852 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: 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] [76.5% done] [ 23448/     0 kb/s] [eta 00m:04s]
Threads: 2: [_VV] [100.0% done] [ 61240/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [100.0% done] [ 61936/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=22393
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=6.4%, 2=76.4%, 4=3.4%, 8=13.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=68.9%, 4=12.3%, 10=1.4%, 20=0.2%, 50=1.3%, 100=6.7%
     lat (msec): 250=5.2%, 500=3.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22394
  read : io=100MiB, bw=6,736KiB/s, runt= 15566msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  411, avg=30.38, stdev=59.33
    bw (KiB/s) : min=    5, max=36872, per=85.40%, avg=12586.94, stdev=13109.03
  write: io=76,940KiB, bw=6,111KiB/s, runt= 12892msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  260, avg= 2.02, stdev=14.21
    bw (KiB/s) : min=    0, max=59850, per=100.43%, avg=19061.50, stdev=27468.37
  cpu          : usr=10.48%, sys=4.70%, ctx=4316
  IO depths    : 1=9.8%, 2=52.8%, 4=23.9%, 8=13.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=42.7%, 4=7.3%, 10=33.7%, 20=3.7%, 50=1.4%, 100=6.9%
     lat (msec): 250=2.8%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=22395
  read : io=100MiB, bw=6,721KiB/s, runt= 15600msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  448, avg=25.44, stdev=51.28
    bw (KiB/s) : min=   25, max=33727, per=90.41%, avg=13325.87, stdev=13534.46
  write: io=79,368KiB, bw=6,306KiB/s, runt= 12888msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  234, avg= 2.13, stdev=13.66
    bw (KiB/s) : min=    0, max=21692, per=73.13%, avg=13879.50, stdev=9523.37
  cpu          : usr=11.13%, sys=4.62%, ctx=4092
  IO depths    : 1=8.0%, 2=54.7%, 4=24.6%, 8=12.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.4%, 4=5.7%, 10=36.1%, 20=2.8%, 50=2.7%, 100=6.0%
     lat (msec): 250=2.3%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=219MiB, aggrb=14,739KiB/s, minb=0KiB/s, maxb=6,736KiB/s, mint=15566msec, maxt=15600msec
  WRITE: io=233MiB, aggrb=18,980KiB/s, minb=0KiB/s, maxb=6,306KiB/s, mint=15566msec, maxt=15600msec

Disk stats (read/write):
  cciss!c0d0: ios=2018/3355, merge=24583/56343, ticks=145524/1427636, in_queue=1573172, util=98.26%
4.83user 1.80system 0:15.91elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
546296inputs+477936outputs (0major+2426minor)pagefaults 0swaps