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: [Fmm] [33.3% done] [  4535/ 40614 kb/s] [eta 00m:06s]
Threads: 3: [Fmm] [50.0% done] [  4626/ 17966 kb/s] [eta 00m:04s]
Threads: 3: [Fmm] [55.6% done] [  2485/ 30278 kb/s] [eta 00m:04s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=13862, got signal=6
Threads: 2: [F_m] [60.0% done] [  1405/  4595 kb/s] [eta 00m:04s]
Threads: 2: [F_F] [100.0% done] [     0/ 16180 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] [68.4% done] [ 48640/     0 kb/s] [eta 00m:06s]
Threads: 2: [V_V] [93.3% done] [ 65491/     0 kb/s] [eta 00m:01s]
Threads: 1: [__V] [100.0% done] [ 65096/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=13861
  read : io=100MiB, bw=7,084KiB/s, runt= 14801msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  450, avg=11.75, stdev=35.35
    bw (KiB/s) : min=    0, max=57376, per=187.87%, avg=28962.50, stdev=23520.34
  write: io=99,956KiB, bw=8,431KiB/s, runt= 12140msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  148, avg= 1.35, stdev= 6.46
    bw (KiB/s) : min=    0, max=60940, per=188.44%, avg=40479.67, stdev=35057.11
  cpu          : usr=12.62%, sys=7.70%, ctx=5544
  IO depths    : 1=2.0%, 2=58.7%, 4=32.0%, 8=7.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.4%, 4=22.2%, 10=23.8%, 20=2.8%, 50=1.6%, 100=1.0%
     lat (msec): 250=1.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13862
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=1.1%, 2=75.7%, 4=8.0%, 8=15.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=62.8%, 4=13.0%, 10=6.0%, 20=1.4%, 50=2.0%, 100=7.8%
     lat (msec): 250=5.4%, 500=1.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=13863
  read : io=100MiB, bw=6,845KiB/s, runt= 15317msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  449, avg=33.79, stdev=71.87
    bw (KiB/s) : min=   17, max=45902, per=66.24%, avg=10211.80, stdev=14635.59
  write: io=88,692KiB, bw=7,185KiB/s, runt= 12639msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  335, avg= 1.80, stdev=15.21
    bw (KiB/s) : min=    0, max=60205, per=108.22%, avg=23248.00, stdev=32359.13
  cpu          : usr=10.92%, sys=6.66%, ctx=5720
  IO depths    : 1=1.4%, 2=57.7%, 4=28.5%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.6%, 4=18.0%, 10=21.3%, 20=3.9%, 50=0.4%, 100=1.9%
     lat (msec): 250=6.6%, 500=1.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=225MiB, aggrb=15,416KiB/s, minb=0KiB/s, maxb=7,084KiB/s, mint=15317msec, maxt=15317msec
  WRITE: io=259MiB, aggrb=21,482KiB/s, minb=0KiB/s, maxb=8,431KiB/s, mint=15317msec, maxt=15317msec

Disk stats (read/write):
  cciss!c0d0: ios=4244/3671, merge=915/62569, ticks=34084/1424472, in_queue=1459576, util=97.46%
4.93user 2.68system 0:15.67elapsed 48%CPU (0avgtext+0avgdata 0maxresident)k
527088inputs+530512outputs (0major+2451minor)pagefaults 0swaps