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] [33.3% done] [ 17921/ 20512 kb/s] [eta 00m:06s]
Threads: 3: [mmm] [50.0% done] [ 15525/ 26573 kb/s] [eta 00m:04s]
Threads: 3: [mmm] [55.6% done] [ 13886/ 25190 kb/s] [eta 00m:04s]
Threads: 3: [mmF] [60.0% done] [  8521/  6296 kb/s] [eta 00m:04s]
Threads: 3: [mmF] [58.3% done] [  1755/ 15876 kb/s] [eta 00m:05s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=30874, got signal=6
Threads: 2: [m_F] [61.5% done] [  3929/     0 kb/s] [eta 00m:05s]
Threads: 2: [F_F] [100.0% done] [   394/ 13020 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_F] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [V_V] [80.0% done] [ 50966/     0 kb/s] [eta 00m:04s]
Threads: 2: [V_V] [100.0% done] [ 59247/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=30873
  read : io=100MiB, bw=5,926KiB/s, runt= 17692msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  435, avg=43.74, stdev=67.70
    bw (KiB/s) : min=   12, max=39002, per=63.55%, avg=8557.38, stdev=11585.25
  write: io=73,820KiB, bw=4,995KiB/s, runt= 15131msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  387, avg= 3.37, stdev=27.14
    bw (KiB/s) : min=    0, max=27264, per=61.04%, avg=8850.25, stdev=12468.25
  cpu          : usr=8.46%, sys=4.41%, ctx=7720
  IO depths    : 1=14.0%, 2=35.2%, 4=26.8%, 8=23.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.3%, 4=11.0%, 10=19.8%, 20=5.9%, 50=3.7%, 100=9.4%
     lat (msec): 250=7.9%, 500=1.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30874
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.4%, 2=67.5%, 4=7.6%, 8=24.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=54.7%, 4=12.3%, 10=2.2%, 20=1.9%, 50=5.3%, 100=13.9%
     lat (msec): 250=7.7%, 500=1.4%, 750=0.4%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30875
  read : io=100MiB, bw=5,837KiB/s, runt= 17890msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  343, avg=32.91, stdev=45.60
    bw (KiB/s) : min=    9, max=35764, per=82.80%, avg=11149.65, stdev=11580.45
  write: io=68,952KiB, bw=4,666KiB/s, runt= 15131msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 1.97, stdev=10.71
    bw (KiB/s) : min=    0, max=23508, per=87.32%, avg=12661.00, stdev=11858.52
  cpu          : usr=8.25%, sys=4.67%, ctx=6645
  IO depths    : 1=0.5%, 2=47.9%, 4=28.3%, 8=23.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=36.9%, 4=12.3%, 10=20.1%, 20=8.0%, 50=7.1%, 100=8.2%
     lat (msec): 250=6.8%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=230MiB, aggrb=13,466KiB/s, minb=0KiB/s, maxb=5,926KiB/s, mint=17890msec, maxt=17890msec
  WRITE: io=209MiB, aggrb=14,500KiB/s, minb=0KiB/s, maxb=4,995KiB/s, mint=17890msec, maxt=17890msec

Disk stats (read/write):
  cciss!c0d0: ios=5161/3093, merge=1050/50400, ticks=43732/1486096, in_queue=1530184, util=98.44%
4.24user 2.07system 0:18.18elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
596968inputs+428560outputs (0major+2447minor)pagefaults 0swaps