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: [FFF] [100.0% done] [   420/ 45140 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: [FVF] [66.7% done] [     0/     0 kb/s] [eta 00m:05s]
Threads: 3: [FVF] [73.3% done] [  5920/     0 kb/s] [eta 00m:04s]
Threads: 3: [FVF] [75.0% done] [  6148/     0 kb/s] [eta 00m:04s]
Threads: 3: [FVF] [86.7% done] [ 12768/     0 kb/s] [eta 00m:02s]
Threads: 3: [FVF] [87.5% done] [  6764/     0 kb/s] [eta 00m:02s]
Threads: 3: [FVV] [71.4% done] [ 12468/     0 kb/s] [eta 00m:06s]
Threads: 3: [FVV] [80.0% done] [ 21352/     0 kb/s] [eta 00m:04s]
Threads: 3: [FVV] [89.5% done] [ 25052/     0 kb/s] [eta 00m:02s]
Threads: 3: [FVV] [94.7% done] [ 22448/     0 kb/s] [eta 00m:01s]
Threads: 3: [FVV] [100.0% done] [ 24072/     0 kb/s] [eta 00m:00s]
Threads: 2: [FEV] [100.0% done] [ 28800/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_V] [100.0% done] [ 14992/     0 kb/s] [eta 00m:00s]
Threads: 2: [F_V] [100.0% done] [  8684/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [79.3% done] [ 23324/     0 kb/s] [eta 00m:06s]
Threads: 1: [V__] [100.0% done] [ 40292/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=23036
  read : io=100MiB, bw=4,119KiB/s, runt= 25454msec
    slat (msec): min=   71, max=23023, avg=21135.24, stdev=3922.83
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=42731, per=173.24%, avg=21409.33, stdev=19460.57
  write: io=98,408KiB, bw=4,437KiB/s, runt= 22709msec
    slat (msec): min=    0, max=   13, avg= 1.81, stdev= 2.08
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=26837, per=101.83%, avg=13418.50, stdev=18976.62
  cpu          : usr=4.86%, sys=1.41%, ctx=894
  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=23037
  read : io=100MiB, bw=5,159KiB/s, runt= 20324msec
    slat (msec): min=   45, max=18408, avg=13680.26, stdev=3868.46
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    4, max=16525, per=69.98%, avg=8648.60, stdev=4689.66
  write: io=96,736KiB, bw=10,102KiB/s, runt=  9805msec
    slat (msec): min=    0, max=   51, avg= 1.89, stdev= 3.44
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=104776, per=274.09%, avg=36116.33, stdev=59487.85
  cpu          : usr=5.85%, sys=2.16%, ctx=867
  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%
fio: (groupid=0): err= 0: pid=23038
  read : io=100MiB, bw=4,622KiB/s, runt= 22686msec
    slat (msec): min=   71, max=20773, avg=16441.09, stdev=4009.22
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   17, max=21269, per=82.64%, avg=10212.88, stdev=5708.42
  write: io=97,084KiB, bw=6,942KiB/s, runt= 14319msec
    slat (msec): min=    0, max=  113, avg= 1.96, stdev= 3.44
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=89020, per=225.20%, avg=29674.67, stdev=51394.57
  cpu          : usr=5.27%, sys=1.99%, ctx=918
  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%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,358KiB/s, minb=4,119KiB/s, maxb=5,159KiB/s, mint=20324msec, maxt=25454msec
  WRITE: io=285MiB, aggrb=13,177KiB/s, minb=4,437KiB/s, maxb=10,102KiB/s, mint=20324msec, maxt=25454msec

Disk stats (read/write):
  sda: ios=3168/2522, merge=1366/70154, ticks=68108/2805292, in_queue=2966276, util=98.40%
3.68user 1.26system 0:25.78elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2433minor)pagefaults 0swaps