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
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=26260, got signal=6
Threads: 2
Threads: 2: [m_m] [50.0% done] [ 12019/ 57835 kb/s] [eta 00m:03s]
Threads: 2: [F_F] [100.0% done] [  3723/ 31516 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: [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] [82.4% done] [ 52150/     0 kb/s] [eta 00m:03s]
Threads: 2: [V_V] [100.0% done] [ 56693/     0 kb/s] [eta 00m:00s]
Threads: 1: [E_V] [100.0% done] [ 50091/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=26259
  read : io=100MiB, bw=6,509KiB/s, runt= 16109msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  230, avg=21.80, stdev=36.86
    bw (KiB/s) : min=    9, max=44179, per=118.79%, avg=15655.00, stdev=13844.42
  write: io=80,540KiB, bw=6,278KiB/s, runt= 13135msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  125, avg= 1.07, stdev= 5.79
    bw (KiB/s) : min=    0, max=61366, per=144.42%, avg=29339.67, stdev=30771.09
  cpu          : usr=10.50%, sys=5.09%, ctx=6233
  IO depths    : 1=0.7%, 2=55.5%, 4=27.3%, 8=16.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=43.7%, 4=14.9%, 10=19.4%, 20=7.9%, 50=5.7%, 100=4.5%
     lat (msec): 250=3.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26260
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=0.2%, 2=94.3%, 4=1.7%, 8=3.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=79.5%, 4=13.9%, 10=1.7%, 20=0.1%, 50=1.7%, 100=2.5%
     lat (msec): 250=0.4%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=26261
  read : io=100MiB, bw=6,435KiB/s, runt= 16289msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  346, avg=21.53, stdev=40.41
    bw (KiB/s) : min=    8, max=33215, per=108.91%, avg=14353.17, stdev=12859.05
  write: io=82,620KiB, bw=6,441KiB/s, runt= 13135msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  127, avg= 1.43, stdev= 6.08
    bw (KiB/s) : min=    0, max=55653, per=114.99%, avg=23360.00, stdev=23990.92
  cpu          : usr=10.85%, sys=5.21%, ctx=6795
  IO depths    : 1=4.2%, 2=52.8%, 4=28.1%, 8=14.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=40.4%, 4=18.9%, 10=22.9%, 20=4.5%, 50=5.0%, 100=4.6%
     lat (msec): 250=3.3%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=205MiB, aggrb=13,179KiB/s, minb=0KiB/s, maxb=6,509KiB/s, mint=16289msec, maxt=16289msec
  WRITE: io=254MiB, aggrb=20,315KiB/s, minb=0KiB/s, maxb=6,441KiB/s, mint=16289msec, maxt=16289msec

Disk stats (read/write):
  cciss!c0d0: ios=4269/3476, merge=873/61680, ticks=26820/1479052, in_queue=1506776, util=96.34%
4.79user 2.13system 0:16.84elapsed 41%CPU (0avgtext+0avgdata 0maxresident)k
514904inputs+521384outputs (0major+2457minor)pagefaults 0swaps