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: [Fmm] [50.0% done] [  4380/ 44925 kb/s] [eta 00m:03s]
Threads: 3: [Fmm] [50.0% done] [  2925/ 10073 kb/s] [eta 00m:04s]
Threads: 3: [Fmm] [50.0% done] [  2424/ 13634 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=15795, got signal=6
Threads: 2: [Fm_] [60.0% done] [   833/ 21216 kb/s] [eta 00m:04s]
Threads: 2: [Fm_] [63.6% done] [  1243/  6294 kb/s] [eta 00m:04s]
Threads: 2: [FF_] [100.0% done] [     0/  8167 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_] [73.7% done] [ 37733/     0 kb/s] [eta 00m:05s]
Threads: 2: [VV_] [93.8% done] [ 67085/     0 kb/s] [eta 00m:01s]
Threads: 2: [VV_] [100.0% done] [ 68685/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=15793
  read : io=100MiB, bw=6,331KiB/s, runt= 16520msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  319, avg=13.53, stdev=35.79
    bw (KiB/s) : min=    2, max=53579, per=153.77%, avg=21363.25, stdev=19889.90
  write: io=99MiB, bw=7,662KiB/s, runt= 13507msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  191, avg= 0.65, stdev= 7.67
    bw (KiB/s) : min=    0, max=59909, per=169.07%, avg=35057.67, stdev=31231.38
  cpu          : usr=9.61%, sys=4.04%, ctx=10980
  IO depths    : 1=44.2%, 2=24.4%, 4=24.6%, 8=6.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=56.1%, 4=17.5%, 10=19.3%, 20=2.3%, 50=0.5%, 100=0.7%
     lat (msec): 250=3.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15794
  read : io=100MiB, bw=6,418KiB/s, runt= 16338msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  401, avg=35.43, stdev=81.10
    bw (KiB/s) : min=   13, max=39920, per=56.69%, avg=7875.78, stdev=12911.22
  write: io=90,420KiB, bw=6,836KiB/s, runt= 13543msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  305, avg= 2.86, stdev=20.15
    bw (KiB/s) : min=    0, max=22335, per=50.94%, avg=10563.60, stdev=8489.47
  cpu          : usr=11.56%, sys=4.41%, ctx=8846
  IO depths    : 1=25.3%, 2=40.4%, 4=23.2%, 8=11.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.7%, 4=16.1%, 10=19.7%, 20=3.6%, 50=0.7%, 100=1.1%
     lat (msec): 250=5.1%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=15795
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=77.5%, 2=9.8%, 4=2.5%, 8=10.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=85.7%, 4=0.8%, 10=0.1%, 20=0.3%, 50=1.7%, 100=4.8%
     lat (msec): 250=3.3%, 500=3.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=219MiB, aggrb=13,893KiB/s, minb=0KiB/s, maxb=6,418KiB/s, mint=0msec, maxt=16520msec
  WRITE: io=268MiB, aggrb=20,736KiB/s, minb=0KiB/s, maxb=7,662KiB/s, mint=0msec, maxt=16520msec

Disk stats (read/write):
  cciss!c0d0: ios=3973/4013, merge=1160/64471, ticks=36256/1808524, in_queue=1844952, util=98.29%
4.61user 1.80system 0:16.81elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
493968inputs+548536outputs (0major+2458minor)pagefaults 0swaps