fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
...
fio: (g=0): rw=randrw, bs=4K-256K/4K-256K, ioengine=posixaio, iodepth=8
Starting 3 threads
Threads: 3
Threads: 3
Threads: 3: [mmF] [5.0% done] [   104/     0 kb/s] [eta 00m:57s]
Threads: 3: [mmF] [6.7% done] [   284/     0 kb/s] [eta 00m:56s]
Threads: 3: [mmF] [8.3% done] [   292/     0 kb/s] [eta 00m:55s]
Threads: 3: [mmF] [10.0% done] [   484/     0 kb/s] [eta 00m:54s]
Threads: 3: [mmF] [11.7% done] [   604/     0 kb/s] [eta 00m:53s]
Threads: 3: [mmF] [13.3% done] [  1576/     0 kb/s] [eta 00m:52s]
Threads: 3: [mFV] [15.0% done] [  2865/ 55334 kb/s] [eta 00m:51s]
Threads: 3: [mFV] [16.7% done] [   300/     0 kb/s] [eta 00m:50s]
Threads: 3: [mFV] [18.3% done] [   503/     0 kb/s] [eta 00m:49s]
Threads: 3: [mVV] [20.0% done] [ 18899/     0 kb/s] [eta 00m:48s]
Threads: 3: [mVV] [21.7% done] [ 31260/     0 kb/s] [eta 00m:47s]
Threads: 3: [mVV] [23.3% done] [ 36123/     0 kb/s] [eta 00m:46s]
Threads: 3: [mVV] [25.0% done] [ 33726/     0 kb/s] [eta 00m:45s]
Threads: 3: [mVV] [26.7% done] [ 30480/     0 kb/s] [eta 00m:44s]
Threads: 2: [mV_] [28.3% done] [ 26624/   597 kb/s] [eta 00m:43s]
Threads: 1: [m__] [30.0% done] [ 26676/  8487 kb/s] [eta 00m:42s]
Threads: 1: [m__] [31.7% done] [ 10063/ 13134 kb/s] [eta 00m:41s]
Threads: 1: [m__] [37.7% done] [ 10329/     0 kb/s] [eta 00m:33s]
Threads: 1: [m__] [43.8% done] [  9918/     0 kb/s] [eta 00m:27s]
Threads: 1: [m__] [47.8% done] [  5928/     0 kb/s] [eta 00m:24s]
Threads: 1: [m__] [57.5% done] [  3701/ 10475 kb/s] [eta 00m:17s]
Threads: 1: [F__] [100.0% done] [     0/ 16164 kb/s] [eta 00m:00s]
Threads: 1: [V__] [69.4% done] [  4270/     0 kb/s] [eta 00m:11s]
Threads: 1: [V__] [83.9% done] [ 22036/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 20272/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=4554
  read : io=100MiB, bw=3,806KiB/s, runt= 27538msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 7295, avg=120.74, stdev=558.64
    bw (KiB/s) : min=   25, max=23519, per=46.44%, avg=5303.68, stdev=6974.67
  write: io=48,352KiB, bw=1,975KiB/s, runt= 25060msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1871, avg=10.30, stdev=117.09
    bw (KiB/s) : min=    0, max=44982, per=99.40%, avg=10006.80, stdev=19649.10
  cpu          : usr=1.44%, sys=1.38%, ctx=9083
  IO depths    : 1=0.5%, 2=37.2%, 4=23.6%, 8=38.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=36.1%, 4=1.3%, 10=3.2%, 20=18.6%, 50=20.4%, 100=15.1%
     lat (msec): 250=2.0%, 500=0.4%, 750=0.2%, 1000=0.4%, >=2000=0.7%
fio: (groupid=0): err= 0: pid=4555
  read : io=100MiB, bw=5,748KiB/s, runt= 18240msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 4103, avg=72.67, stdev=330.06
    bw (KiB/s) : min=   54, max=28344, per=69.81%, avg=7973.08, stdev=8940.10
  write: io=95,636KiB, bw=8,350KiB/s, runt= 11728msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  415, avg= 2.20, stdev=24.19
    bw (KiB/s) : min=    0, max= 5264, per=26.14%, avg=2632.00, stdev=3722.21
  cpu          : usr=4.12%, sys=2.41%, ctx=6502
  IO depths    : 1=0.8%, 2=52.3%, 4=31.2%, 8=15.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.2%, 4=1.7%, 10=11.5%, 20=21.5%, 50=7.3%, 100=1.2%
     lat (msec): 250=7.0%, 500=0.5%, 750=0.2%, 1000=0.1%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=4556
  read : io=100MiB, bw=6,175KiB/s, runt= 16977msec
    clat (msec): min=    0, max= 2054, avg=38.00, stdev=128.74
    bw (KiB/s) : min=    6, max=22866, per=113.26%, avg=12935.33, stdev=9232.23
  write: io=100MiB, bw=12,008KiB/s, runt=  8732msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=   18, avg= 0.44, stdev= 1.38
    bw (KiB/s) : min=    0, max=123396, per=612.87%, avg=61698.00, stdev=87254.15
  cpu          : usr=5.23%, sys=2.69%, ctx=6115
  IO depths    : 1=1.5%, 2=53.0%, 4=33.3%, 8=12.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.0%, 4=3.2%, 10=17.7%, 20=17.8%, 50=5.3%, 100=2.3%
     lat (msec): 250=4.9%, 500=0.2%, 750=0.1%, 1000=0.1%, >=2000=0.2%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=11,421KiB/s, minb=3,806KiB/s, maxb=6,175KiB/s, mint=16977msec, maxt=27538msec
  WRITE: io=241MiB, aggrb=10,067KiB/s, minb=1,975KiB/s, maxb=12,008KiB/s, mint=16977msec, maxt=27538msec

Disk stats (read/write):
  sda: ios=3874/2754, merge=1223/58685, ticks=85328/1522096, in_queue=1610384, util=97.24%
2.08user 1.33system 0:27.94elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2472minor)pagefaults 0swaps