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: [mmm] [9.1% done] [ 11698/ 23255 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [13.3% done] [ 12759/ 36811 kb/s] [eta 00m:26s]
Threads: 3: [mFm] [31.2% done] [  9489/ 50901 kb/s] [eta 00m:11s]
Threads: 3: [mFm] [35.3% done] [  1509/  6198 kb/s] [eta 00m:11s]
Threads: 3: [mFm] [35.0% done] [   300/     0 kb/s] [eta 00m:13s]
Threads: 3: [mFm] [34.8% done] [   597/     0 kb/s] [eta 00m:15s]
Threads: 3: [mFm] [36.0% done] [  1305/   870 kb/s] [eta 00m:16s]
Threads: 3: [mFm] [35.7% done] [   512/ 24571 kb/s] [eta 00m:18s]
Threads: 3: [mFm] [36.7% done] [  1332/ 14173 kb/s] [eta 00m:19s]
Threads: 3: [mFm] [36.4% done] [   370/     0 kb/s] [eta 00m:21s]
fio: ioengines.c:195: td_io_queue: Assertion `(io_u->flags & IO_U_F_FLIGHT) == 0' failed.
fio: pid=23625, got signal=6
Threads: 2: [_Vm] [61.9% done] [  9532/ 38050 kb/s] [eta 00m:08s]
Threads: 2: [_Vm] [63.6% done] [ 28419/     0 kb/s] [eta 00m:08s]
Threads: 2: [_VF] [100.0% done] [ 23388/  8200 kb/s] [eta 00m:00s]
Threads: 2: [_VF] [100.0% done] [  2806/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VF] [100.0% done] [  1346/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VF] [100.0% done] [ 18696/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [76.0% done] [ 21716/     0 kb/s] [eta 00m:06s]
Threads: 1: [__V] [90.9% done] [ 21435/     0 kb/s] [eta 00m:02s]
Threads: 1: [__V] [100.0% done] [ 20541/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 20817/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23625
  cpu          : usr=0.00%, sys=0.00%, ctx=0
  IO depths    : 1=77.7%, 2=1.3%, 4=5.0%, 8=16.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=77.8%, 4=0.4%, 10=1.2%, 20=1.3%, 50=3.0%, 100=4.2%
     lat (msec): 250=6.7%, 500=2.5%, 750=0.9%, 1000=0.7%, >=2000=0.9%
fio: (groupid=0): err= 0: pid=23626
  read : io=100MiB, bw=5,673KiB/s, runt= 18482msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  877, avg=39.13, stdev=80.69
    bw (KiB/s) : min=   24, max=28518, per=97.73%, avg=10269.89, stdev=10569.39
  write: io=89,264KiB, bw=7,216KiB/s, runt= 12666msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.04
    clat (msec): min=    0, max=  214, avg= 1.23, stdev=12.54
    bw (KiB/s) : min=    0, max=57352, per=201.30%, avg=27731.60, stdev=26241.62
  cpu          : usr=8.77%, sys=3.94%, ctx=12161
  IO depths    : 1=52.3%, 2=5.1%, 4=26.9%, 8=15.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=52.5%, 4=2.3%, 10=9.1%, 20=13.5%, 50=15.6%, 100=1.6%
     lat (msec): 250=3.7%, 500=1.3%, 750=0.2%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=23627
  read : io=100MiB, bw=4,719KiB/s, runt= 22220msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1903, avg=67.50, stdev=187.63
    bw (KiB/s) : min=   17, max=23134, per=56.69%, avg=5957.09, stdev=7951.31
  write: io=75,596KiB, bw=4,267KiB/s, runt= 18139msec
    slat (msec): min=    0, max=    5, avg= 0.01, stdev= 0.17
    clat (msec): min=    0, max= 1408, avg=11.19, stdev=93.44
    bw (KiB/s) : min=    0, max=56057, per=83.37%, avg=11485.00, stdev=20548.91
  cpu          : usr=5.42%, sys=3.96%, ctx=11341
  IO depths    : 1=34.3%, 2=17.7%, 4=27.9%, 8=20.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=45.4%, 4=2.7%, 10=8.9%, 20=15.7%, 50=16.7%, 100=1.6%
     lat (msec): 250=5.1%, 500=2.0%, 750=0.7%, 1000=0.2%, >=2000=0.8%

Run status group 0 (all jobs):
   READ: io=223MiB, aggrb=10,508KiB/s, minb=0KiB/s, maxb=5,673KiB/s, mint=18482msec, maxt=22220msec
  WRITE: io=238MiB, aggrb=13,776KiB/s, minb=0KiB/s, maxb=7,216KiB/s, mint=18482msec, maxt=22220msec

Disk stats (read/write):
  cciss!c0d0: ios=4616/4009, merge=48/56882, ticks=75504/1427144, in_queue=1502716, util=95.89%
4.06user 2.19system 0:23.33elapsed 26%CPU (0avgtext+0avgdata 0maxresident)k
571256inputs+488088outputs (0major+2479minor)pagefaults 0swaps