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] [11.5% done] [ 26825/ 10113 kb/s] [eta 00m:23s]
Threads: 3: [mmm] [21.1% done] [ 26163/  6667 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [33.3% done] [ 18593/ 18105 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [42.9% done] [ 31444/  5635 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [50.0% done] [ 20934/ 15249 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [57.1% done] [ 31154/  7168 kb/s] [eta 00m:06s]
Threads: 3: [mmm] [56.2% done] [  5305/  5041 kb/s] [eta 00m:07s]
Threads: 3: [mFm] [58.8% done] [  3765/  3473 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [61.1% done] [  2099/  3560 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [63.2% done] [     0/  4399 kb/s] [eta 00m:07s]
Threads: 3: [mFF] [68.4% done] [  2745/  2181 kb/s] [eta 00m:06s]
Threads: 3: [FFF] [100.0% done] [     0/  2004 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [ 17250/     0 kb/s] [eta 00m:00s]
Threads: 2: [FF_] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 2: [VF_] [78.3% done] [ 16166/     0 kb/s] [eta 00m:05s]
fio: (groupid=0): err= 0: pid=4200
  read : io=100MiB, bw=5,601KiB/s, runt= 18719msec
    clat (msec): min=    0, max=  248, avg= 4.73, stdev=22.85
    bw (KiB/s) : min=    8, max=18361, per=31.47%, avg=5202.76, stdev=5092.01
  write: io=40,896KiB, bw=2,266KiB/s, runt= 18480msec
    clat (msec): min=    0, max=  209, avg= 6.58, stdev=22.83
    bw (KiB/s) : min=    0, max=13194, per=76.79%, avg=4353.81, stdev=4353.39
  cpu          : usr=5.43%, sys=1.41%, ctx=5257
  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=78.0%, 4=2.5%, 10=7.3%, 20=8.4%, 50=1.1%, 100=0.9%
     lat (msec): 250=1.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4201
  read : io=100MiB, bw=5,511KiB/s, runt= 19024msec
    clat (msec): min=    0, max=  256, avg= 2.59, stdev=20.53
    bw (KiB/s) : min=    5, max=26517, per=47.67%, avg=7882.69, stdev=8172.71
  write: io=45,508KiB, bw=2,483KiB/s, runt= 18766msec
    clat (msec): min=    0, max= 1465, avg= 8.09, stdev=68.43
    bw (KiB/s) : min=    0, max=26738, per=121.40%, avg=6883.36, stdev=8618.76
  cpu          : usr=5.32%, sys=0.99%, ctx=1221
  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=92.6%, 4=0.9%, 10=2.5%, 20=2.1%, 50=0.1%, 100=0.0%
     lat (msec): 250=1.5%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4202
  read : io=100MiB, bw=6,451KiB/s, runt= 16252msec
    clat (msec): min=    0, max=  585, avg= 5.10, stdev=29.59
    bw (KiB/s) : min=   11, max=16718, per=49.72%, avg=8220.94, stdev=5385.66
  write: io=17,520KiB, bw=1,111KiB/s, runt= 16147msec
    clat (msec): min=    0, max=  239, avg= 5.09, stdev=28.18
    bw (KiB/s) : min=    0, max=18833, per=97.92%, avg=5552.33, stdev=7005.57
  cpu          : usr=5.12%, sys=0.86%, ctx=2466
  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=88.0%, 4=1.0%, 10=3.7%, 20=4.0%, 50=0.8%, 100=0.1%
     lat (msec): 250=2.1%, 500=0.0%, 750=0.1%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=16,535KiB/s, minb=5,511KiB/s, maxb=6,451KiB/s, mint=16252msec, maxt=19024msec
  WRITE: io=101MiB, aggrb=5,670KiB/s, minb=1,111KiB/s, maxb=2,483KiB/s, mint=16252msec, maxt=19024msec

Disk stats (read/write):
  sda: ios=8798/1236, merge=0/24767, ticks=31508/1324684, in_queue=1356188, util=97.84%
2.87user 0.60system 0:19.41elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (8798major+94982minor)pagefaults 0swaps