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: [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: 2: [_VV] [83.3% done] [ 33264/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=32419
  read : io=100MiB, bw=24,516KiB/s, runt=  4277msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=65839, max=67256, per=110.43%, avg=66547.50, stdev=1001.97
  cpu          : usr=28.62%, sys=2.43%, ctx=9
  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=99.8%, 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=32420
  read : io=100MiB, bw=20,484KiB/s, runt=  5119msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   39, max=67059, per=73.33%, avg=44192.00, stdev=38245.79
  write: io=37,684KiB, bw=7,873KiB/s, runt=  4901msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=    0, per=0.00%, avg= 0.00, stdev=-1.00
  cpu          : usr=28.13%, sys=3.13%, ctx=76
  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=99.9%, 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=32421
  read : io=100MiB, bw=20,087KiB/s, runt=  5220msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=   58, max=  310, per=0.31%, avg=184.00, stdev=178.19
  write: io=57,824KiB, bw=12,101KiB/s, runt=  4893msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=    0, max=118300, per=296.42%, avg=59150.00, stdev=83650.73
  cpu          : usr=20.00%, sys=4.37%, ctx=15
  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=99.9%, 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=60,262KiB/s, minb=20,087KiB/s, maxb=24,516KiB/s, mint=4277msec, maxt=5220msec
  WRITE: io=95,508KiB, aggrb=19,955KiB/s, minb=0KiB/s, maxb=12,101KiB/s, mint=4277msec, maxt=5220msec

Disk stats (read/write):
  sda: ios=0/816, merge=0/23082, ticks=0/532484, in_queue=532484, util=74.83%
3.71user 0.50system 0:05.51elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+101623minor)pagefaults 0swaps