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=19818, got signal=6
Threads: 2: [m_m] [60.0% done] [ 11910/ 74491 kb/s] [eta 00m:02s]
Threads: 2: [F_m] [66.7% done] [  8464/ 14738 kb/s] [eta 00m:02s]
Threads: 2: [F_F] [100.0% done] [   248/  6699 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] [70.0% done] [  8440/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [88.2% done] [ 66178/     0 kb/s] [eta 00m:02s]
Threads: 2: [V_V] [100.0% done] [ 61501/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=19817
  read : io=100MiB, bw=6,264KiB/s, runt= 16738msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  314, avg=19.73, stdev=38.39
    bw (KiB/s) : min=    8, max=37812, per=120.35%, avg=15807.92, stdev=15044.37
  write: io=87,432KiB, bw=6,426KiB/s, runt= 13931msec
    slat (msec): min=    0, max=    5, avg= 0.01, stdev= 0.16
    clat (msec): min=    0, max=  124, avg= 0.78, stdev= 6.68
    bw (KiB/s) : min=    0, max=58421, per=124.29%, avg=24131.50, stdev=24830.51
  cpu          : usr=10.49%, sys=5.09%, ctx=12577
  IO depths    : 1=56.0%, 2=11.0%, 4=21.9%, 8=11.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=58.8%, 4=8.8%, 10=18.2%, 20=2.8%, 50=2.1%, 100=6.1%
     lat (msec): 250=2.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19818
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=39.9%, 2=45.8%, 4=7.9%, 8=6.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=90.5%, 4=1.2%, 10=1.2%, 20=0.1%, 50=0.5%, 100=3.4%
     lat (msec): 250=2.2%, 500=0.7%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=19819
  read : io=100MiB, bw=6,287KiB/s, runt= 16673msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  151, avg=23.22, stdev=31.84
    bw (KiB/s) : min=    0, max=41594, per=103.30%, avg=13567.83, stdev=14274.98
  write: io=84,328KiB, bw=6,198KiB/s, runt= 13931msec
    slat (msec): min=    0, max=    2, avg= 0.01, stdev= 0.11
    clat (msec): min=    0, max=  111, avg= 1.63, stdev= 7.95
    bw (KiB/s) : min=    0, max=60221, per=113.68%, avg=22070.75, stdev=26555.26
  cpu          : usr=10.87%, sys=4.27%, ctx=8257
  IO depths    : 1=20.6%, 2=34.3%, 4=26.6%, 8=18.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=38.1%, 4=16.1%, 10=21.1%, 20=6.7%, 50=7.5%, 100=6.1%
     lat (msec): 250=4.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=210MiB, aggrb=13,135KiB/s, minb=0KiB/s, maxb=6,287KiB/s, mint=16673msec, maxt=16738msec
  WRITE: io=258MiB, aggrb=19,415KiB/s, minb=0KiB/s, maxb=6,426KiB/s, mint=16673msec, maxt=16738msec

Disk stats (read/write):
  cciss!c0d0: ios=4184/3768, merge=997/62208, ticks=28084/1545392, in_queue=1574080, util=97.63%
4.62user 2.01system 0:17.05elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
505200inputs+528448outputs (0major+2460minor)pagefaults 0swaps