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: [mFm] [42.9% done] [  2130/127023 kb/s] [eta 00m:04s]
Threads: 3: [FFm] [44.4% done] [  1043/ 21578 kb/s] [eta 00m:05s]
Threads: 3: [FFF] [100.0% done] [   366/ 38656 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: [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: [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] [ 15903/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [69.2% done] [ 25119/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [79.2% done] [ 30790/     0 kb/s] [eta 00m:05s]
Threads: 3: [VVV] [87.0% done] [ 37620/     0 kb/s] [eta 00m:03s]
Threads: 3: [VVV] [91.3% done] [ 31172/     0 kb/s] [eta 00m:02s]
Threads: 3: [VVV] [100.0% done] [ 34575/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 31015/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 39561/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [100.0% done] [ 33662/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5143
  read : io=100MiB, bw=4,098KiB/s, runt= 25585msec
    slat (msec): min=  144, max=22415, avg=18029.29, stdev=4112.80
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    6, max=20872, per=80.05%, avg=9651.39, stdev=5078.53
  write: io=95,296KiB, bw=5,849KiB/s, runt= 16682msec
    slat (msec): min=    0, max=   13, avg= 1.81, stdev= 2.01
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=113666, per=316.64%, avg=56833.00, stdev=80374.00
  cpu          : usr=4.60%, sys=1.58%, ctx=1023
  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=5144
  read : io=100MiB, bw=4,148KiB/s, runt= 25279msec
    slat (msec): min=15869, max=24361, avg=20256.91, stdev=2534.91
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    8, max=21106, per=96.58%, avg=11645.14, stdev=4633.36
  write: io=100MiB, bw=6,301KiB/s, runt= 16641msec
    slat (msec): min=    0, max=   10, avg= 1.80, stdev= 1.94
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    1, max=116666, per=325.00%, avg=58333.50, stdev=82494.61
  cpu          : usr=5.10%, sys=1.27%, ctx=843
  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=5145
  read : io=100MiB, bw=4,019KiB/s, runt= 26089msec
    slat (msec): min=  176, max=21118, avg=17281.80, stdev=4245.78
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   10, max=22523, per=68.26%, avg=8229.78, stdev=6265.34
  write: io=94,888KiB, bw=5,821KiB/s, runt= 16692msec
    slat (msec): min=    0, max=   12, avg= 1.67, stdev= 1.87
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=24068, per=67.05%, avg=12034.00, stdev=17018.65
  cpu          : usr=4.57%, sys=1.33%, ctx=1009
  IO depths    : 1=12.6%, 2=25.0%, 4=50.0%, 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%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,057KiB/s, minb=4,019KiB/s, maxb=4,148KiB/s, mint=25279msec, maxt=26089msec
  WRITE: io=286MiB, aggrb=17,949KiB/s, minb=5,821KiB/s, maxb=6,301KiB/s, mint=25279msec, maxt=26089msec

Disk stats (read/write):
  sda: ios=3072/2637, merge=1068/70388, ticks=110080/2098356, in_queue=2212124, util=99.00%
3.68user 1.08system 0:26.48elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2430minor)pagefaults 0swaps