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: 2
Threads: 2: [mm_] [25.0% done] [ 10601/ 21788 kb/s] [eta 00m:09s]
Threads: 2: [mm_] [33.3% done] [ 13819/ 14128 kb/s] [eta 00m:08s]
Threads: 2: [mm_] [45.5% done] [ 24559/  5802 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [50.0% done] [ 17176/  8021 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [58.3% done] [ 11186/  3388 kb/s] [eta 00m:05s]
Threads: 2: [mm_] [57.1% done] [  3689/  2669 kb/s] [eta 00m:06s]
Threads: 2: [mm_] [60.0% done] [  4716/  1812 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [62.5% done] [  3812/  3560 kb/s] [eta 00m:06s]
Threads: 2: [mF_] [64.7% done] [     0/  5460 kb/s] [eta 00m:06s]
Threads: 2: [FF_] [100.0% done] [  1408/  1916 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: 1: [_V_] [75.0% done] [ 41788/     0 kb/s] [eta 00m:05s]
fio: (groupid=0): err= 0: pid=5198
  read : io=100MiB, bw=7,045KiB/s, runt= 14882msec
    clat (msec): min=    0, max=  178, avg= 4.26, stdev=18.46
    bw (KiB/s) : min=    1, max=15016, per=32.24%, avg=6625.90, stdev=5979.06
  write: io=32,884KiB, bw=2,292KiB/s, runt= 14690msec
    clat (msec): min=    0, max=  193, avg= 5.82, stdev=19.93
    bw (KiB/s) : min=    0, max=11486, per=79.16%, avg=4082.09, stdev=3393.92
  cpu          : usr=6.83%, sys=1.16%, ctx=4716
  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=2.4%, 10=7.4%, 20=7.1%, 50=1.0%, 100=1.1%
     lat (msec): 250=1.5%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5199
  read : io=100MiB, bw=6,851KiB/s, runt= 15305msec
    clat (msec): min=    0, max=  212, avg= 3.03, stdev=16.28
    bw (KiB/s) : min=   20, max=18180, per=33.66%, avg=6919.00, stdev=7104.54
  write: io=42,968KiB, bw=2,921KiB/s, runt= 15061msec
    clat (msec): min=    0, max=  189, avg= 6.22, stdev=23.10
    bw (KiB/s) : min=    0, max=21138, per=120.34%, avg=6206.00, stdev=7295.27
  cpu          : usr=6.74%, sys=1.41%, ctx=3465
  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=84.1%, 4=2.0%, 10=5.3%, 20=5.4%, 50=1.0%, 100=0.4%
     lat (msec): 250=1.6%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=5200
  read : io=100MiB, bw=72,616KiB/s, runt=  1444msec
    clat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    bw (KiB/s) : min=116006, max=116006, per=564.42%, avg=116006.00, stdev=-1.00
  cpu          : usr=55.68%, sys=6.93%, ctx=7
  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%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=20,553KiB/s, minb=6,851KiB/s, maxb=72,616KiB/s, mint=1444msec, maxt=15305msec
  WRITE: io=75,852KiB, aggrb=5,157KiB/s, minb=0KiB/s, maxb=2,921KiB/s, mint=1444msec, maxt=15305msec

Disk stats (read/write):
  sda: ios=7903/890, merge=0/18122, ticks=19720/879360, in_queue=899080, util=97.50%
2.86user 0.52system 0:15.66elapsed 21%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (7903major+88846minor)pagefaults 0swaps