fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=mmap, iodepth=1
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmF] [18.8% done] [ 12336/  4803 kb/s] [eta 00m:13s]
Threads: 3: [mmF] [25.0% done] [ 11369/  5278 kb/s] [eta 00m:12s]
Threads: 3: [mmF] [29.4% done] [  9285/  6680 kb/s] [eta 00m:12s]
Threads: 3: [mmF] [35.3% done] [  1312/ 13116 kb/s] [eta 00m:11s]
Threads: 3: [mmF] [41.2% done] [ 11942/  5315 kb/s] [eta 00m:10s]
Threads: 3: [mmF] [47.1% done] [ 11394/  8126 kb/s] [eta 00m:09s]
Threads: 3: [mmF] [52.9% done] [  4461/  9955 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [55.6% done] [  6940/  5603 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [57.9% done] [  4786/  1637 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [60.0% done] [   804/  4327 kb/s] [eta 00m:08s]
Threads: 3: [mmF] [61.9% done] [  1182/  3628 kb/s] [eta 00m:08s]
Threads: 2: [mm_] [63.6% done] [ 37652/  2881 kb/s] [eta 00m:08s]
Threads: 2: [mm_] [65.2% done] [  4685/  3791 kb/s] [eta 00m:08s]
Threads: 2: [FF_] [100.0% done] [  4006/  2434 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VF_] [100.0% done] [ 45502/     0 kb/s] [eta 00m:00s]
Threads: 1: [_V_] [100.0% done] [ 46782/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=16051
  read : io=100MiB, bw=5,227KiB/s, runt= 20058msec
    clat (msec): min=    0, max=  233, avg= 4.97, stdev=24.84
    bw (KiB/s) : min=    6, max=11687, per=28.05%, avg=4172.04, stdev=4030.06
  write: io=45,688KiB, bw=2,363KiB/s, runt= 19794msec
    clat (msec): min=    0, max=  224, avg= 8.14, stdev=30.91
    bw (KiB/s) : min=    0, max=14421, per=61.50%, avg=4267.45, stdev=4327.52
  cpu          : usr=5.36%, sys=0.92%, ctx=4204
  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=81.8%, 4=2.0%, 10=5.8%, 20=6.5%, 50=1.1%, 100=0.1%
     lat (msec): 250=2.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16052
  read : io=100MiB, bw=4,958KiB/s, runt= 21147msec
    clat (msec): min=    0, max=  203, avg= 3.45, stdev=18.78
    bw (KiB/s) : min=    7, max=13575, per=25.57%, avg=3804.17, stdev=4177.78
  write: io=61,532KiB, bw=3,029KiB/s, runt= 20801msec
    clat (msec): min=    0, max=  200, avg=10.18, stdev=32.44
    bw (KiB/s) : min=    0, max=11245, per=61.26%, avg=4250.92, stdev=3597.74
  cpu          : usr=5.07%, sys=1.66%, ctx=5718
  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=79.4%, 4=1.4%, 10=6.4%, 20=8.9%, 50=1.2%, 100=0.4%
     lat (msec): 250=2.3%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=16053
  read : io=100MiB, bw=7,656KiB/s, runt= 13695msec
    clat (msec): min=    0, max=  225, avg= 0.25, stdev= 6.74
    bw (KiB/s) : min=    2, max=110772, per=235.54%, avg=35037.25, stdev=52349.73
  write: io=33,748KiB, bw=2,560KiB/s, runt= 13498msec
    clat (msec): min=    0, max=  105, avg= 0.20, stdev= 4.37
    bw (KiB/s) : min=    0, max=68113, per=490.80%, avg=34056.50, stdev=48163.16
  cpu          : usr=7.33%, sys=1.23%, ctx=74
  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=99.6%, 4=0.0%, 10=0.0%, 20=0.0%, 50=0.0%, 100=0.0%
     lat (msec): 250=0.1%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=14,875KiB/s, minb=4,958KiB/s, maxb=7,656KiB/s, mint=13695msec, maxt=21147msec
  WRITE: io=138MiB, aggrb=6,939KiB/s, minb=2,363KiB/s, maxb=3,029KiB/s, mint=13695msec, maxt=21147msec

Disk stats (read/write):
  sda: ios=9790/1398, merge=0/33881, ticks=30016/2168316, in_queue=2198332, util=97.08%
3.16user 0.79system 0:21.56elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (9789major+103280minor)pagefaults 0swaps