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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=714, got signal=6
Threads: 2: [mm_] [30.0% done] [ 12560/ 24677 kb/s] [eta 00m:07s]
Threads: 2: [mF_] [57.1% done] [  6451/ 92247 kb/s] [eta 00m:03s]
Threads: 2: [FF_] [100.0% done] [   885/ 16209 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_] [68.4% done] [   438/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [82.4% done] [ 58993/     0 kb/s] [eta 00m:03s]
Threads: 2: [VV_] [100.0% done] [ 63837/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=712
  read : io=100MiB, bw=6,685KiB/s, runt= 15685msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  407, avg=26.94, stdev=50.40
    bw (KiB/s) : min=   26, max=38084, per=79.01%, avg=11352.71, stdev=11910.80
  write: io=77,928KiB, bw=6,134KiB/s, runt= 13008msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  231, avg= 1.79, stdev=12.84
    bw (KiB/s) : min=    0, max=22675, per=57.49%, avg=10978.00, stdev=11354.59
  cpu          : usr=9.21%, sys=4.90%, ctx=5704
  IO depths    : 1=1.7%, 2=55.8%, 4=25.4%, 8=17.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.1%, 4=12.3%, 10=21.7%, 20=3.7%, 50=4.2%, 100=5.4%
     lat (msec): 250=5.0%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=713
  read : io=100MiB, bw=6,779KiB/s, runt= 15466msec
    slat (msec): min=    0, max=    3, avg= 0.01, stdev= 0.21
    clat (msec): min=    0, max=  413, avg=21.41, stdev=42.80
    bw (KiB/s) : min=   12, max=41106, per=115.37%, avg=16578.18, stdev=14452.18
  write: io=77,748KiB, bw=6,124KiB/s, runt= 13000msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  104, avg= 0.97, stdev= 4.91
    bw (KiB/s) : min=    0, max=60768, per=151.40%, avg=28908.33, stdev=30491.31
  cpu          : usr=11.22%, sys=4.29%, ctx=5551
  IO depths    : 1=2.1%, 2=58.5%, 4=26.1%, 8=13.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.6%, 4=14.7%, 10=22.7%, 20=2.6%, 50=0.7%, 100=5.1%
     lat (msec): 250=4.1%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=714
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=2.6%, 2=76.8%, 4=7.0%, 8=13.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=72.0%, 4=9.8%, 10=1.6%, 20=1.8%, 50=6.0%, 100=6.3%
     lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=215MiB, aggrb=14,369KiB/s, minb=0KiB/s, maxb=6,779KiB/s, mint=0msec, maxt=15685msec
  WRITE: io=237MiB, aggrb=19,094KiB/s, minb=0KiB/s, maxb=6,134KiB/s, mint=0msec, maxt=15685msec

Disk stats (read/write):
  cciss!c0d0: ios=2101/3206, merge=21559/57365, ticks=152656/1340560, in_queue=1493216, util=94.78%
4.15user 1.75system 0:16.02elapsed 36%CPU (0avgtext+0avgdata 0maxresident)k
537792inputs+485144outputs (0major+2443minor)pagefaults 0swaps