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: [mmm] [12.0% done] [ 26356/  8120 kb/s] [eta 00m:22s]
Threads: 3: [mmm] [19.0% done] [ 32460/   136 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [25.0% done] [ 20024/  8464 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [30.0% done] [ 28244/  4032 kb/s] [eta 00m:14s]
Threads: 3: [mmm] [36.8% done] [ 15460/ 16444 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [42.1% done] [ 13056/  6336 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [47.4% done] [ 18392/     0 kb/s] [eta 00m:10s]
Threads: 3: [mFm] [52.6% done] [  9816/  3340 kb/s] [eta 00m:09s]
Threads: 3: [mFm] [57.9% done] [  8972/  2444 kb/s] [eta 00m:08s]
Threads: 3: [FFm] [57.1% done] [  1856/   728 kb/s] [eta 00m:09s]
Threads: 2: [_Fm] [59.1% done] [  3628/    88 kb/s] [eta 00m:09s]
Threads: 1: [_Em] [60.9% done] [ 38896/  2588 kb/s] [eta 00m:09s]
Threads: 1: [__m] [65.2% done] [    96/  5728 kb/s] [eta 00m:08s]
Threads: 1: [__F] [100.0% done] [  2928/  2220 kb/s] [eta 00m:00s]
Threads: 1: [__V] [81.0% done] [ 19120/     0 kb/s] [eta 00m:04s]
fio: (groupid=0): err= 0: pid=9616
  read : io=100MiB, bw=8,288KiB/s, runt= 12651msec
    clat (msec): min=    0, max=  249, avg= 5.75, stdev=25.55
    bw (KiB/s) : min=   21, max=25413, per=49.10%, avg=8905.95, stdev=6739.25
  write: io=2,764KiB, bw=224KiB/s, runt= 12629msec
    clat (msec): min=    0, max=  244, avg= 7.72, stdev=34.37
    bw (KiB/s) : min=    0, max= 4899, per=58.68%, avg=2449.50, stdev=3464.12
  cpu          : usr=6.48%, sys=0.98%, ctx=3524
  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=77.0%, 4=3.4%, 10=8.1%, 20=7.6%, 50=1.3%, 100=0.1%
     lat (msec): 250=2.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9617
  read : io=100MiB, bw=7,394KiB/s, runt= 14180msec
    clat (msec): min=    0, max=  252, avg= 3.13, stdev=23.99
    bw (KiB/s) : min=   14, max=24421, per=42.24%, avg=7661.13, stdev=7407.82
  write: io=38,160KiB, bw=2,800KiB/s, runt= 13955msec
    clat (msec): min=    0, max=  424, avg= 6.40, stdev=36.23
    bw (KiB/s) : min=    0, max=13941, per=136.02%, avg=5677.33, stdev=5583.65
  cpu          : usr=7.00%, sys=1.35%, ctx=1038
  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=94.4%, 4=0.5%, 10=1.3%, 20=1.6%, 50=0.2%, 100=0.1%
     lat (msec): 250=1.7%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=9618
  read : io=100MiB, bw=6,045KiB/s, runt= 17344msec
    clat (msec): min=    0, max=  606, avg= 6.28, stdev=36.01
    bw (KiB/s) : min=    6, max=13416, per=28.11%, avg=5099.15, stdev=4505.51
  write: io=29,092KiB, bw=1,734KiB/s, runt= 17176msec
    clat (msec): min=    0, max=  619, avg= 6.52, stdev=33.90
    bw (KiB/s) : min=    0, max= 8940, per=72.82%, avg=3039.62, stdev=3573.34
  cpu          : usr=5.54%, sys=1.06%, ctx=4419
  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=80.1%, 4=2.1%, 10=6.9%, 20=7.5%, 50=1.1%, 100=0.2%
     lat (msec): 250=1.6%, 500=0.3%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=18,137KiB/s, minb=6,045KiB/s, maxb=8,288KiB/s, mint=12651msec, maxt=17344msec
  WRITE: io=70,016KiB, aggrb=4,174KiB/s, minb=224KiB/s, maxb=2,800KiB/s, mint=12651msec, maxt=17344msec

Disk stats (read/write):
  sda: ios=8875/936, merge=0/16619, ticks=34420/624148, in_queue=658568, util=97.05%
2.78user 0.60system 0:17.70elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (8875major+86417minor)pagefaults 0swaps