fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=libaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [Fmm] [42.9% done] [  1704/     0 kb/s] [eta 00m:04s]
Threads: 3: [Fmm] [40.0% done] [  1500/  7068 kb/s] [eta 00m:06s]
Threads: 3: [FFm] [41.7% done] [  1220/ 31076 kb/s] [eta 00m:07s]
Threads: 3: [FFm] [42.9% done] [   752/     0 kb/s] [eta 00m:08s]
Threads: 3: [FFm] [43.8% done] [  1872/     0 kb/s] [eta 00m:09s]
Threads: 3: [FFm] [42.1% done] [   668/     0 kb/s] [eta 00m:11s]
Threads: 3: [FFm] [42.9% done] [  1112/     0 kb/s] [eta 00m:12s]
Threads: 3: [FFm] [45.5% done] [  1220/     0 kb/s] [eta 00m:12s]
Threads: 3: [FFm] [45.8% done] [   608/     0 kb/s] [eta 00m:13s]
Threads: 3: [FFF] [100.0% done] [   532/ 34260 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [68.0% done] [  6656/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [69.2% done] [ 17328/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [76.0% done] [ 31895/     0 kb/s] [eta 00m:06s]
Threads: 3: [VVV] [83.3% done] [ 34244/     0 kb/s] [eta 00m:04s]
Threads: 3: [VVV] [87.5% done] [ 30304/     0 kb/s] [eta 00m:03s]
Threads: 3: [VVV] [95.7% done] [ 35712/     0 kb/s] [eta 00m:01s]
Threads: 3: [VVV] [100.0% done] [ 35884/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 29944/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 35980/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12161
  read : io=100MiB, bw=4,101KiB/s, runt= 25563msec
    slat (msec): min=  167, max=24074, avg=19991.51, stdev=3347.27
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=18249, per=87.15%, avg=10454.50, stdev=4527.30
  write: io=99,696KiB, bw=6,120KiB/s, runt= 16680msec
    slat (msec): min=    0, max=   14, avg= 1.87, stdev= 2.08
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=107782, per=312.79%, avg=53891.00, stdev=76213.38
  cpu          : usr=4.80%, sys=1.39%, ctx=832
  IO depths    : 1=12.6%, 2=25.1%, 4=49.9%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12162
  read : io=100MiB, bw=4,025KiB/s, runt= 26051msec
    slat (msec): min=   47, max=21817, avg=16492.77, stdev=5280.45
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=15189, per=63.70%, avg=7641.15, stdev=4705.66
  write: io=93,612KiB, bw=5,732KiB/s, runt= 16722msec
    slat (msec): min=    0, max=  103, avg= 2.10, stdev= 5.00
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=95504, per=184.98%, avg=31870.00, stdev=55108.69
  cpu          : usr=4.74%, sys=1.29%, ctx=1058
  IO depths    : 1=12.6%, 2=25.0%, 4=49.9%, 8=12.4%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12163
  read : io=100MiB, bw=3,998KiB/s, runt= 26221msec
    slat (msec): min=   34, max=14308, avg=9600.13, stdev=3932.70
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   27, max=15976, per=42.51%, avg=5099.03, stdev=5190.68
  write: io=88,120KiB, bw=5,394KiB/s, runt= 16726msec
    slat (msec): min=    0, max=   38, avg= 1.92, stdev= 3.04
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=104198, per=201.66%, avg=34743.33, stdev=60149.51
  cpu          : usr=4.59%, sys=1.33%, ctx=1183
  IO depths    : 1=12.6%, 2=25.0%, 4=49.9%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=99.9%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=11,996KiB/s, minb=3,998KiB/s, maxb=4,101KiB/s, mint=25563msec, maxt=26221msec
  WRITE: io=275MiB, aggrb=17,229KiB/s, minb=5,394KiB/s, maxb=6,120KiB/s, mint=25563msec, maxt=26221msec

Disk stats (read/write):
  sda: ios=3421/2359, merge=1347/67926, ticks=126684/2096920, in_queue=2223604, util=99.06%
3.70user 1.04system 0:26.48elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2423minor)pagefaults 0swaps