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] [25.0% done] [ 15872/ 42447 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [30.8% done] [ 17571/ 26475 kb/s] [eta 00m:09s]
Threads: 3: [FFm] [35.7% done] [  6300/ 71405 kb/s] [eta 00m:09s]
Threads: 3: [FFm] [40.0% done] [  1462/  7046 kb/s] [eta 00m:09s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=1541, got signal=6
Threads: 2: [FF_] [100.0% done] [     0/ 42273 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_] [70.0% done] [  9367/     0 kb/s] [eta 00m:06s]
Threads: 2: [VV_] [88.2% done] [ 58527/     0 kb/s] [eta 00m:02s]
Threads: 2: [VV_] [100.0% done] [ 62465/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1539
  read : io=100MiB, bw=6,349KiB/s, runt= 16512msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  246, avg=24.85, stdev=43.94
    bw (KiB/s) : min=    8, max=44257, per=95.55%, avg=13762.00, stdev=15278.50
  write: io=82,824KiB, bw=6,121KiB/s, runt= 13855msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.08
    clat (msec): min=    0, max=  164, avg= 0.94, stdev= 8.05
    bw (KiB/s) : min=    0, max=60450, per=141.94%, avg=24572.20, stdev=30315.36
  cpu          : usr=10.27%, sys=4.31%, ctx=10031
  IO depths    : 1=38.3%, 2=22.8%, 4=25.0%, 8=13.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.4%, 4=12.6%, 10=22.2%, 20=3.5%, 50=3.4%, 100=3.8%
     lat (msec): 250=6.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1540
  read : io=100MiB, bw=6,245KiB/s, runt= 16735msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  353, avg=25.82, stdev=51.33
    bw (KiB/s) : min=   21, max=40951, per=99.62%, avg=14347.62, stdev=13379.05
  write: io=80,024KiB, bw=5,914KiB/s, runt= 13855msec
    slat (msec): min=    0, max=    3, avg= 0.00, stdev= 0.08
    clat (msec): min=    0, max=  138, avg= 0.79, stdev= 7.70
    bw (KiB/s) : min=    0, max=59596, per=204.91%, avg=35473.25, stdev=29051.67
  cpu          : usr=9.61%, sys=3.78%, ctx=10455
  IO depths    : 1=42.1%, 2=19.6%, 4=25.8%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.6%, 4=14.4%, 10=20.5%, 20=2.4%, 50=0.3%, 100=1.6%
     lat (msec): 250=7.6%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1541
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.3%, 2=77.9%, 4=3.9%, 8=17.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=65.1%, 4=11.8%, 10=2.8%, 20=0.1%, 50=1.8%, 100=4.4%
     lat (msec): 250=12.1%, 500=1.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=230MiB, aggrb=14,403KiB/s, minb=0KiB/s, maxb=6,349KiB/s, mint=0msec, maxt=16735msec
  WRITE: io=229MiB, aggrb=17,312KiB/s, minb=0KiB/s, maxb=6,121KiB/s, mint=0msec, maxt=16735msec

Disk stats (read/write):
  cciss!c0d0: ios=4794/3356, merge=1093/55101, ticks=44500/1363156, in_queue=1412336, util=98.15%
4.59user 1.88system 0:17.06elapsed 37%CPU (0avgtext+0avgdata 0maxresident)k
601992inputs+468640outputs (0major+2453minor)pagefaults 0swaps