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: [mFm] [42.9% done] [  6753/ 86471 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=18193, got signal=6
Threads: 2: [_FF] [100.0% done] [   743/ 41354 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: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [66.7% done] [     0/     0 kb/s] [eta 00m:06s]
Threads: 2: [_VV] [86.7% done] [ 62940/     0 kb/s] [eta 00m:02s]
Threads: 2: [_VV] [100.0% done] [ 69005/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=18193
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=26.0%, 2=62.7%, 4=2.5%, 8=8.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=83.8%, 4=4.5%, 10=1.0%, 20=0.2%, 50=1.6%, 100=5.0%
     lat (msec): 250=2.8%, 500=0.9%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18194
  read : io=100MiB, bw=7,078KiB/s, runt= 14811msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  249, avg=14.05, stdev=34.08
    bw (KiB/s) : min=   16, max=40444, per=160.77%, avg=24206.25, stdev=16287.61
  write: io=93,396KiB, bw=7,951KiB/s, runt= 12027msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   75, avg= 0.63, stdev= 3.25
    bw (KiB/s) : min=    0, max=97624, per=233.44%, avg=53244.67, stdev=49412.11
  cpu          : usr=11.10%, sys=3.78%, ctx=10858
  IO depths    : 1=35.2%, 2=37.9%, 4=19.8%, 8=7.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=61.2%, 4=14.7%, 10=15.8%, 20=2.0%, 50=1.2%, 100=2.3%
     lat (msec): 250=2.7%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=18195
  read : io=100MiB, bw=7,025KiB/s, runt= 14926msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  283, avg=21.48, stdev=38.75
    bw (KiB/s) : min=   18, max=39060, per=108.99%, avg=16410.00, stdev=14609.47
  write: io=86,860KiB, bw=7,394KiB/s, runt= 12028msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   59, avg= 0.58, stdev= 3.23
    bw (KiB/s) : min=    0, max=61133, per=109.96%, avg=25081.33, stdev=32008.94
  cpu          : usr=7.61%, sys=4.13%, ctx=10049
  IO depths    : 1=44.2%, 2=15.9%, 4=27.1%, 8=12.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.3%, 4=11.0%, 10=24.4%, 20=4.7%, 50=1.4%, 100=4.5%
     lat (msec): 250=4.6%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=214MiB, aggrb=15,056KiB/s, minb=0KiB/s, maxb=7,078KiB/s, mint=14811msec, maxt=14926msec
  WRITE: io=262MiB, aggrb=22,809KiB/s, minb=0KiB/s, maxb=7,951KiB/s, mint=14811msec, maxt=14926msec

Disk stats (read/write):
  cciss!c0d0: ios=4118/3376, merge=1134/63387, ticks=29144/1392724, in_queue=1424620, util=98.09%
4.30user 1.54system 0:15.26elapsed 38%CPU (0avgtext+0avgdata 0maxresident)k
519904inputs+535960outputs (0major+2452minor)pagefaults 0swaps