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: 2: [mm_] [17.6% done] [ 11192/ 11860 kb/s] [eta 00m:14s]
Threads: 2: [mm_] [26.7% done] [ 16244/  9600 kb/s] [eta 00m:11s]
Threads: 2: [mm_] [33.3% done] [ 21980/     0 kb/s] [eta 00m:10s]
Threads: 2: [mm_] [40.0% done] [ 23224/   696 kb/s] [eta 00m:09s]
Threads: 2: [mm_] [53.8% done] [  7876/ 15272 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [57.1% done] [  9424/   848 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [60.0% done] [  6576/  1180 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [62.5% done] [  4492/  3996 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [64.7% done] [  6096/  2464 kb/s] [eta 00m:06s]
Threads: 2: [Fm_] [66.7% done] [   520/  4240 kb/s] [eta 00m:06s]
Threads: 2: [Fm_] [68.4% done] [  2188/    32 kb/s] [eta 00m:06s]
Threads: 1: [_F_] [100.0% done] [ 37060/   216 kb/s] [eta 00m:00s]
Threads: 1: [_F_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=17992
  read : io=100MiB, bw=7,634KiB/s, runt= 13734msec
    clat (msec): min=    0, max=  236, avg= 3.83, stdev=17.80
    bw (KiB/s) : min=   16, max=16757, per=32.57%, avg=6594.26, stdev=6097.61
  write: io=37,036KiB, bw=2,805KiB/s, runt= 13520msec
    clat (msec): min=    0, max=  215, avg= 6.76, stdev=24.69
    bw (KiB/s) : min=    0, max=23982, per=110.23%, avg=5304.46, stdev=6899.13
  cpu          : usr=7.16%, sys=1.46%, ctx=4469
  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=80.8%, 4=2.4%, 10=5.6%, 20=7.9%, 50=0.9%, 100=0.3%
     lat (msec): 250=1.9%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17993
  read : io=100MiB, bw=6,748KiB/s, runt= 15539msec
    clat (msec): min=    0, max=  630, avg= 5.33, stdev=30.97
    bw (KiB/s) : min=   18, max=14086, per=27.92%, avg=5653.05, stdev=5241.91
  write: io=35,060KiB, bw=2,340KiB/s, runt= 15339msec
    clat (msec): min=    0, max=  698, avg= 7.22, stdev=35.72
    bw (KiB/s) : min=    0, max=16424, per=105.70%, avg=5086.38, stdev=6347.08
  cpu          : usr=6.23%, sys=1.21%, ctx=3862
  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=81.0%, 4=1.9%, 10=6.6%, 20=6.8%, 50=1.0%, 100=0.5%
     lat (msec): 250=2.0%, 500=0.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=17994
  read : io=100MiB, bw=39,643KiB/s, runt=  2645msec
    clat (msec): min=    0, max=  566, avg= 0.65, stdev=15.07
    bw (KiB/s) : min= 3008, max=110551, per=249.17%, avg=50441.33, stdev=54880.70
  cpu          : usr=31.61%, sys=3.18%, ctx=128
  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=99.3%, 4=0.1%, 10=0.1%, 20=0.1%, 50=0.1%, 100=0.1%
     lat (msec): 250=0.2%, 500=0.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=20,244KiB/s, minb=6,748KiB/s, maxb=39,643KiB/s, mint=2645msec, maxt=15539msec
  WRITE: io=72,096KiB, aggrb=4,812KiB/s, minb=0KiB/s, maxb=2,805KiB/s, mint=2645msec, maxt=15539msec

Disk stats (read/write):
  sda: ios=8387/871, merge=0/17214, ticks=24544/507708, in_queue=532248, util=97.36%
2.79user 0.52system 0:15.93elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (8387major+87417minor)pagefaults 0swaps