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] [42.9% done] [ 14108/ 54499 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=21746, got signal=6
Threads: 2: [_Fm] [66.7% done] [  7580/ 67500 kb/s] [eta 00m:02s]
Threads: 2: [_Fm] [71.4% done] [  1439/     0 kb/s] [eta 00m:02s]
Threads: 2: [_FF] [100.0% done] [   759/  4555 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: [_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] [87.5% done] [ 55472/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 58534/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=21746
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=14.9%, 2=69.8%, 4=4.2%, 8=11.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.1%, 4=12.2%, 10=2.1%, 20=0.5%, 50=1.0%, 100=8.0%
     lat (msec): 250=4.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21747
  read : io=100MiB, bw=6,488KiB/s, runt= 16160msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  260, avg=20.62, stdev=42.47
    bw (KiB/s) : min=    2, max=33745, per=112.52%, avg=15503.82, stdev=13691.37
  write: io=89,000KiB, bw=6,923KiB/s, runt= 13163msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   70, avg= 0.57, stdev= 3.14
    bw (KiB/s) : min=    0, max=60319, per=159.99%, avg=32125.25, stdev=30670.86
  cpu          : usr=11.26%, sys=4.36%, ctx=10573
  IO depths    : 1=42.7%, 2=24.8%, 4=22.3%, 8=10.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.7%, 4=14.8%, 10=20.8%, 20=3.0%, 50=0.7%, 100=3.6%
     lat (msec): 250=4.2%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=21748
  read : io=100MiB, bw=6,553KiB/s, runt= 16001msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  359, avg=30.68, stdev=50.00
    bw (KiB/s) : min=    5, max=38064, per=83.66%, avg=11527.47, stdev=13111.13
  write: io=79,448KiB, bw=6,180KiB/s, runt= 13164msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  191, avg= 1.74, stdev=12.66
    bw (KiB/s) : min=    0, max=18137, per=50.69%, avg=10178.75, stdev=7530.78
  cpu          : usr=9.60%, sys=4.17%, ctx=8919
  IO depths    : 1=30.1%, 2=26.8%, 4=26.0%, 8=17.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.4%, 4=12.7%, 10=22.4%, 20=4.2%, 50=3.4%, 100=7.2%
     lat (msec): 250=6.0%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=212MiB, aggrb=13,779KiB/s, minb=0KiB/s, maxb=6,553KiB/s, mint=16001msec, maxt=16160msec
  WRITE: io=252MiB, aggrb=20,079KiB/s, minb=0KiB/s, maxb=6,923KiB/s, mint=16001msec, maxt=16160msec

Disk stats (read/write):
  cciss!c0d0: ios=4236/3339, merge=1036/61140, ticks=32476/1410948, in_queue=1444192, util=94.64%
4.88user 1.75system 0:16.45elapsed 40%CPU (0avgtext+0avgdata 0maxresident)k
517664inputs+516400outputs (0major+2453minor)pagefaults 0swaps