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] [7.1% done] [  5256/ 40799 kb/s] [eta 00m:39s]
Threads: 3: [FFm] [25.0% done] [  2760/ 65820 kb/s] [eta 00m:12s]
Threads: 3: [FFF] [100.0% done] [     0/ 64640 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] [66.7% done] [  5652/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [68.0% done] [ 24752/     0 kb/s] [eta 00m:08s]
Threads: 3: [VVV] [75.0% done] [ 31376/     0 kb/s] [eta 00m:06s]
Threads: 3: [VVV] [79.2% done] [ 27491/     0 kb/s] [eta 00m:05s]
Threads: 3: [VVV] [87.0% done] [ 32077/     0 kb/s] [eta 00m:03s]
Threads: 3: [VVV] [95.5% done] [ 31024/     0 kb/s] [eta 00m:01s]
Threads: 3: [VVV] [100.0% done] [ 31241/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 32748/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 31590/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5178
  read : io=100MiB, bw=4,140KiB/s, runt= 25327msec
    slat (msec): min=    7, max=22484, avg=18410.70, stdev=4345.44
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=14921, per=64.70%, avg=8035.33, stdev=5003.97
  write: io=96,572KiB, bw=6,339KiB/s, runt= 15598msec
    slat (msec): min=    0, max=   14, avg= 1.79, stdev= 2.05
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=113164, per=205.17%, avg=37893.67, stdev=65186.53
  cpu          : usr=4.72%, sys=1.36%, ctx=937
  IO depths    : 1=12.6%, 2=25.0%, 4=50.0%, 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=5179
  read : io=100MiB, bw=4,206KiB/s, runt= 24926msec
    slat (msec): min=   92, max=20995, avg=15550.90, stdev=4556.47
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   18, max=15363, per=65.10%, avg=8085.68, stdev=5130.84
  write: io=95,736KiB, bw=6,271KiB/s, runt= 15631msec
    slat (msec): min=    0, max=  143, avg= 1.98, stdev= 5.40
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=89011, per=160.73%, avg=29684.67, stdev=51378.12
  cpu          : usr=4.91%, sys=1.35%, ctx=1124
  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%
fio: (groupid=0): err= 0: pid=5180
  read : io=100MiB, bw=4,165KiB/s, runt= 25174msec
    slat (msec): min=  117, max=20665, avg=15604.65, stdev=4678.77
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    9, max=19546, per=62.49%, avg=7761.48, stdev=4891.19
  write: io=89,624KiB, bw=5,880KiB/s, runt= 15606msec
    slat (msec): min=    0, max=   10, avg= 1.63, stdev= 1.76
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=117313, per=317.59%, avg=58656.50, stdev=82952.82
  cpu          : usr=4.50%, sys=1.41%, ctx=1065
  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%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,420KiB/s, minb=4,140KiB/s, maxb=4,206KiB/s, mint=24926msec, maxt=25327msec
  WRITE: io=275MiB, aggrb=18,469KiB/s, minb=5,880KiB/s, maxb=6,339KiB/s, mint=24926msec, maxt=25327msec

Disk stats (read/write):
  sda: ios=3381/2008, merge=1343/68320, ticks=113952/1825892, in_queue=1955868, util=99.26%
3.59user 1.07system 0:25.68elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2422minor)pagefaults 0swaps