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=31267, got signal=6
Threads: 2: [mm_] [30.0% done] [  7724/ 42997 kb/s] [eta 00m:07s]
Threads: 2: [mm_] [50.0% done] [  1897/ 39107 kb/s] [eta 00m:04s]
Threads: 2: [mF_] [55.6% done] [   813/ 20959 kb/s] [eta 00m:04s]
Threads: 2: [mF_] [54.5% done] [  1435/  3778 kb/s] [eta 00m:05s]
Threads: 2: [FF_] [100.0% done] [     0/ 20061 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_] [77.8% done] [ 30650/     0 kb/s] [eta 00m:04s]
Threads: 2: [VV_] [100.0% done] [ 61561/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [100.0% done] [ 59495/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=31265
  read : io=100MiB, bw=6,362KiB/s, runt= 16470msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  427, avg=34.84, stdev=74.98
    bw (KiB/s) : min=   11, max=30920, per=74.22%, avg=9731.00, stdev=11837.08
  write: io=86,044KiB, bw=6,523KiB/s, runt= 13507msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  299, avg= 1.98, stdev=15.60
    bw (KiB/s) : min=    0, max=40422, per=76.86%, avg=15313.67, stdev=21918.85
  cpu          : usr=9.20%, sys=4.30%, ctx=7908
  IO depths    : 1=15.1%, 2=44.5%, 4=26.8%, 8=13.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.9%, 4=15.2%, 10=20.8%, 20=3.9%, 50=1.1%, 100=1.9%
     lat (msec): 250=5.8%, 500=2.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31266
  read : io=100MiB, bw=6,459KiB/s, runt= 16233msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  433, avg=23.32, stdev=49.29
    bw (KiB/s) : min=    3, max=45039, per=126.88%, avg=16635.17, stdev=14628.55
  write: io=80,604KiB, bw=6,110KiB/s, runt= 13507msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  412, avg= 2.18, stdev=19.27
    bw (KiB/s) : min=    0, max=61112, per=170.21%, avg=33910.25, stdev=30056.30
  cpu          : usr=10.55%, sys=4.53%, ctx=7296
  IO depths    : 1=12.0%, 2=49.7%, 4=26.0%, 8=12.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.5%, 4=17.0%, 10=21.6%, 20=3.4%, 50=0.4%, 100=3.4%
     lat (msec): 250=5.0%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=31267
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.9%, 2=77.8%, 4=10.7%, 8=10.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=60.4%, 4=19.5%, 10=5.3%, 20=3.7%, 50=6.6%, 100=2.9%
     lat (msec): 250=1.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=206MiB, aggrb=13,111KiB/s, minb=0KiB/s, maxb=6,459KiB/s, mint=0msec, maxt=16470msec
  WRITE: io=257MiB, aggrb=19,923KiB/s, minb=0KiB/s, maxb=6,523KiB/s, mint=0msec, maxt=16470msec

Disk stats (read/write):
  cciss!c0d0: ios=4316/3519, merge=884/62128, ticks=34764/1626556, in_queue=1662308, util=98.47%
4.67user 1.90system 0:16.75elapsed 39%CPU (0avgtext+0avgdata 0maxresident)k
519016inputs+525624outputs (0major+2455minor)pagefaults 0swaps