fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=sync, iodepth=1
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmm] [8.1% done] [ 15480/   980 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [10.5% done] [  9396/  7412 kb/s] [eta 00m:34s]
Threads: 3: [mmm] [13.5% done] [  7448/  6940 kb/s] [eta 00m:32s]
Threads: 3: [mmm] [16.2% done] [ 11759/  1705 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [18.4% done] [ 10680/  2056 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [20.5% done] [  7060/  6428 kb/s] [eta 00m:31s]
Threads: 3: [mmm] [23.1% done] [  8744/  4096 kb/s] [eta 00m:30s]
Threads: 3: [mmm] [25.6% done] [ 10952/  1404 kb/s] [eta 00m:29s]
Threads: 3: [mmm] [29.7% done] [  7980/  5708 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [31.6% done] [ 10676/     0 kb/s] [eta 00m:26s]
Threads: 3: [mmm] [35.1% done] [  5648/  7564 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [36.8% done] [ 11524/   108 kb/s] [eta 00m:24s]
Threads: 3: [mmm] [39.5% done] [  8480/  2460 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [42.1% done] [  5752/  4216 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [43.6% done] [  6696/  3132 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [47.4% done] [  4976/  5216 kb/s] [eta 00m:20s]
Threads: 3: [mmm] [50.0% done] [  3012/  7164 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [51.3% done] [  3676/  4924 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [52.5% done] [  3640/  3152 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [55.0% done] [  5372/  2544 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [56.1% done] [  5388/  2648 kb/s] [eta 00m:18s]
Threads: 3: [mmm] [57.1% done] [  3760/  3860 kb/s] [eta 00m:18s]
Threads: 3: [mVV] [58.1% done] [  3592/  3688 kb/s] [eta 00m:18s]
Threads: 3: [mVV] [59.1% done] [ 13608/   480 kb/s] [eta 00m:18s]
Threads: 3: [mVV] [58.7% done] [ 12540/   228 kb/s] [eta 00m:19s]
Threads: 3: [mVV] [58.3% done] [ 14460/   132 kb/s] [eta 00m:20s]
Threads: 2: [m_V] [59.2% done] [ 10684/  1260 kb/s] [eta 00m:20s]
Threads: 1: [m__] [65.2% done] [  5232/  3968 kb/s] [eta 00m:16s]
Threads: 1: [V__] [72.1% done] [  7608/  2904 kb/s] [eta 00m:12s]
Threads: 1: [V__] [86.5% done] [ 20266/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 21775/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=12958
  read : io=100MiB, bw=3,085KiB/s, runt= 33987msec
    clat (msec): min=    0, max=  235, avg=12.46, stdev=23.25
    bw (KiB/s) : min=   33, max=23202, per=43.40%, avg=4016.31, stdev=5672.23
  write: io=50,240KiB, bw=1,636KiB/s, runt= 31434msec
    clat (msec): min=    0, max=  390, avg=14.22, stdev=38.39
    bw (KiB/s) : min=    0, max= 6420, per=75.20%, avg=2527.57, stdev=2117.03
  cpu          : usr=2.88%, sys=0.32%, ctx=2451
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.6%, 4=8.2%, 10=16.7%, 20=10.5%, 50=10.9%, 100=4.5%
     lat (msec): 250=2.4%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12959
  read : io=100MiB, bw=3,561KiB/s, runt= 29445msec
    clat (msec): min=    0, max=  138, avg=13.57, stdev=16.59
    bw (KiB/s) : min=   15, max=11673, per=39.39%, avg=3645.83, stdev=2704.04
  write: io=27,096KiB, bw=1,095KiB/s, runt= 25327msec
    clat (msec): min=    0, max=  174, avg= 8.81, stdev=21.52
    bw (KiB/s) : min=    0, max= 7949, per=80.91%, avg=2719.53, stdev=2864.18
  cpu          : usr=3.17%, sys=0.24%, ctx=2206
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=29.5%, 4=6.6%, 10=23.1%, 20=20.6%, 50=16.2%, 100=3.0%
     lat (msec): 250=1.0%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12960
  read : io=100MiB, bw=3,478KiB/s, runt= 30142msec
    clat (msec): min=    0, max=  148, avg=14.77, stdev=18.71
    bw (KiB/s) : min=    8, max=12927, per=39.16%, avg=3624.41, stdev=2313.41
  write: io=25,844KiB, bw=1,036KiB/s, runt= 25536msec
    clat (msec): min=    0, max=  186, avg= 9.78, stdev=23.76
    bw (KiB/s) : min=    0, max= 9725, per=99.92%, avg=3358.23, stdev=3507.79
  cpu          : usr=2.81%, sys=0.23%, ctx=2074
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=25.2%, 4=7.9%, 10=24.1%, 20=21.0%, 50=16.9%, 100=3.5%
     lat (msec): 250=1.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=9,255KiB/s, minb=3,085KiB/s, maxb=3,561KiB/s, mint=29445msec, maxt=33987msec
  WRITE: io=101MiB, aggrb=3,361KiB/s, minb=1,036KiB/s, maxb=1,636KiB/s, mint=29445msec, maxt=33987msec

Disk stats (read/write):
  sda: ios=5508/2109, merge=964/210, ticks=81660/74120, in_queue=155776, util=98.31%
2.76user 0.37system 0:34.41elapsed 9%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+1066minor)pagefaults 0swaps