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: [mmm] [11.5% done] [ 12893/  6875 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [15.4% done] [ 12625/  8159 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [20.8% done] [  9537/ 10601 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [25.0% done] [ 14787/  3279 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [26.9% done] [  8480/  8078 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [28.6% done] [ 13673/  2746 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [30.0% done] [  9500/  8037 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [31.2% done] [  7233/  8651 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [34.4% done] [ 10085/  6708 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [36.4% done] [  9829/  5018 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [38.2% done] [ 11182/  2905 kb/s] [eta 00m:21s]
Threads: 3: [mmm] [41.2% done] [  7037/  6530 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [41.7% done] [  1527/ 10142 kb/s] [eta 00m:21s]
Threads: 3: [mVm] [44.4% done] [  5546/  4985 kb/s] [eta 00m:20s]
Threads: 3: [mVm] [45.9% done] [ 17798/   662 kb/s] [eta 00m:20s]
Threads: 3: [mVm] [46.2% done] [ 15490/   934 kb/s] [eta 00m:21s]
Threads: 3: [mVm] [51.4% done] [  7139/  6696 kb/s] [eta 00m:18s]
Threads: 3: [mVm] [52.6% done] [ 10691/  3348 kb/s] [eta 00m:18s]
Threads: 2: [m_V] [53.8% done] [  7249/  4624 kb/s] [eta 00m:18s]
Threads: 2: [m_V] [55.0% done] [ 17477/   828 kb/s] [eta 00m:18s]
Threads: 2: [m_V] [56.1% done] [ 16221/   442 kb/s] [eta 00m:18s]
Threads: 2: [m_V] [61.5% done] [ 11922/  1454 kb/s] [eta 00m:15s]
Threads: 1: [V__] [67.6% done] [  6156/  4457 kb/s] [eta 00m:12s]
Threads: 1: [V__] [78.8% done] [ 18671/     0 kb/s] [eta 00m:07s]
Threads: 1: [V__] [93.1% done] [ 18988/     0 kb/s] [eta 00m:02s]
fio: (groupid=0): err= 0: pid=4066
  read : io=100MiB, bw=3,845KiB/s, runt= 27269msec
    slat (msec): min=    0, max= 2266, avg=504.32, stdev=704.37
    clat (msec): min=    0, max=  874, avg=76.41, stdev=162.56
    bw (KiB/s) : min=   43, max=18784, per=42.96%, avg=4955.00, stdev=5736.11
  write: io=40,232KiB, bw=1,646KiB/s, runt= 25018msec
    slat (msec): min=    0, max=    1, avg= 0.01, stdev= 0.08
    clat (msec): min=    0, max= 1104, avg=117.88, stdev=226.46
    bw (KiB/s) : min=    0, max=14786, per=51.04%, avg=2617.19, stdev=3567.73
  cpu          : usr=3.45%, sys=0.32%, ctx=2163
  IO depths    : 1=0.1%, 2=0.2%, 4=3.1%, 8=96.6%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=11.6%, 4=2.8%, 10=13.4%, 20=23.4%, 50=21.5%, 100=9.2%
     lat (msec): 250=8.1%, 500=3.6%, 750=3.1%, 1000=3.1%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=4067
  read : io=100MiB, bw=5,200KiB/s, runt= 20163msec
    slat (msec): min=    0, max= 4877, avg=1225.47, stdev=1592.31
    clat (msec): min=    1, max=  815, avg=66.23, stdev=95.43
    bw (KiB/s) : min=   82, max=14495, per=50.48%, avg=5823.09, stdev=4100.09
  write: io=45,872KiB, bw=2,975KiB/s, runt= 15788msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.04
    clat (msec): min=    0, max=  853, avg=66.26, stdev=134.37
    bw (KiB/s) : min=    0, max=11095, per=79.75%, avg=4089.75, stdev=3752.80
  cpu          : usr=4.74%, sys=0.38%, ctx=2198
  IO depths    : 1=0.1%, 2=0.2%, 4=1.9%, 8=97.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=10.5%, 4=1.7%, 10=8.7%, 20=19.6%, 50=26.0%, 100=15.8%
     lat (msec): 250=11.5%, 500=4.7%, 750=1.1%, 1000=0.4%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4068
  read : io=100MiB, bw=4,313KiB/s, runt= 24308msec
    slat (msec): min=    0, max= 3234, avg=720.52, stdev=1001.04
    clat (msec): min=    0, max=  867, avg=73.49, stdev=112.27
    bw (KiB/s) : min=   23, max=16653, per=44.40%, avg=5122.03, stdev=4511.84
  write: io=39,204KiB, bw=1,947KiB/s, runt= 20610msec
    slat (msec): min=    0, max=    1, avg= 0.00, stdev= 0.04
    clat (msec): min=    0, max=  924, avg=106.16, stdev=162.93
    bw (KiB/s) : min=    0, max= 7687, per=47.73%, avg=2447.59, stdev=2202.82
  cpu          : usr=3.74%, sys=0.30%, ctx=2108
  IO depths    : 1=0.1%, 2=0.2%, 4=1.9%, 8=97.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=7.4%, 4=2.0%, 10=8.3%, 20=18.5%, 50=24.1%, 100=15.7%
     lat (msec): 250=15.8%, 500=5.8%, 750=1.4%, 1000=0.8%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=11,535KiB/s, minb=3,845KiB/s, maxb=5,200KiB/s, mint=20163msec, maxt=27269msec
  WRITE: io=122MiB, aggrb=5,128KiB/s, minb=1,646KiB/s, maxb=2,975KiB/s, mint=20163msec, maxt=27269msec

Disk stats (read/write):
  sda: ios=5467/2592, merge=1059/322, ticks=380964/227304, in_queue=608260, util=99.28%
2.87user 0.35system 0:27.59elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2402minor)pagefaults 0swaps