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: [mmm] [5.0% done] [   664/   112 kb/s] [eta 00m:57s]
Threads: 3: [mmm] [6.7% done] [  4364/ 28712 kb/s] [eta 00m:56s]
Threads: 3: [mmF] [8.3% done] [  1944/ 14452 kb/s] [eta 00m:55s]
Threads: 3: [mmF] [10.0% done] [   116/     0 kb/s] [eta 00m:54s]
Threads: 3: [mmV] [11.7% done] [  7320/ 71888 kb/s] [eta 00m:53s]
Threads: 3: [mFV] [13.3% done] [  5532/ 21540 kb/s] [eta 00m:52s]
Threads: 3: [mFV] [15.0% done] [  1316/     0 kb/s] [eta 00m:51s]
Threads: 3: [mFV] [16.7% done] [   332/     0 kb/s] [eta 00m:50s]
Threads: 3: [mVV] [18.3% done] [ 17376/     0 kb/s] [eta 00m:49s]
Threads: 3: [mVV] [20.0% done] [ 29896/     0 kb/s] [eta 00m:48s]
Threads: 3: [mVV] [21.7% done] [ 34584/     0 kb/s] [eta 00m:47s]
Threads: 3: [mVV] [23.3% done] [ 33472/     0 kb/s] [eta 00m:46s]
Threads: 3: [mVV] [25.0% done] [ 29900/   112 kb/s] [eta 00m:45s]
Threads: 2: [mV_] [26.7% done] [ 27492/     0 kb/s] [eta 00m:44s]
Threads: 1: [m__] [28.3% done] [ 20616/     0 kb/s] [eta 00m:43s]
Threads: 1: [m__] [56.2% done] [  5280/ 61408 kb/s] [eta 00m:14s]
Threads: 1: [F__] [100.0% done] [   284/ 16732 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [F__] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 1: [V__] [84.6% done] [ 24075/     0 kb/s] [eta 00m:04s]
Threads: 1: [V__] [100.0% done] [ 32980/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5172
  read : io=100MiB, bw=4,313KiB/s, runt= 24309msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 3815, avg=87.19, stdev=402.52
    bw (KiB/s) : min=    1, max=33848, per=50.32%, avg=6509.79, stdev=11253.14
  write: io=78,844KiB, bw=3,742KiB/s, runt= 21572msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 2694, avg= 6.90, stdev=115.75
    bw (KiB/s) : min=    0, max=63546, per=98.42%, avg=12756.60, stdev=28392.20
  cpu          : usr=2.39%, sys=1.81%, ctx=6860
  IO depths    : 1=1.2%, 2=50.8%, 4=31.6%, 8=16.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=46.7%, 4=0.0%, 10=21.6%, 20=16.5%, 50=9.2%, 100=2.1%
     lat (msec): 250=1.5%, 500=0.2%, 750=0.3%, 1000=0.1%, >=2000=0.6%
fio: (groupid=0): err= 0: pid=5173
  read : io=100MiB, bw=6,183KiB/s, runt= 16958msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 3270, avg=59.71, stdev=254.69
    bw (KiB/s) : min=   50, max=28988, per=71.79%, avg=9287.56, stdev=8477.91
  write: io=93,312KiB, bw=8,817KiB/s, runt= 10836msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1311, avg= 1.73, stdev=33.87
    bw (KiB/s) : min=    0, max=96133, per=370.85%, avg=48066.50, stdev=67976.30
  cpu          : usr=4.86%, sys=2.26%, ctx=4904
  IO depths    : 1=1.3%, 2=53.1%, 4=32.3%, 8=13.3%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.6%, 4=0.8%, 10=18.2%, 20=17.5%, 50=7.2%, 100=1.1%
     lat (msec): 250=6.5%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=5174
  read : io=100MiB, bw=6,657KiB/s, runt= 15741msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1583, avg=54.45, stdev=166.94
    bw (KiB/s) : min=   57, max=26148, per=66.89%, avg=8654.00, stdev=8955.33
  write: io=99MiB, bw=15,521KiB/s, runt=  6656msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1127, avg= 2.38, stdev=41.63
    bw (KiB/s) : min=    0, max=24291, per=62.78%, avg=8137.33, stdev=13989.62
  cpu          : usr=5.44%, sys=2.69%, ctx=4734
  IO depths    : 1=1.8%, 2=56.0%, 4=31.4%, 8=10.9%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.8%, 4=0.8%, 10=21.7%, 20=13.4%, 50=4.5%, 100=2.1%
     lat (msec): 250=5.7%, 500=0.3%, 750=0.3%, 1000=0.5%, >=2000=0.6%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,937KiB/s, minb=4,313KiB/s, maxb=6,657KiB/s, mint=15741msec, maxt=24309msec
  WRITE: io=267MiB, aggrb=12,961KiB/s, minb=3,742KiB/s, maxb=15,521KiB/s, mint=15741msec, maxt=24309msec

Disk stats (read/write):
  sda: ios=3567/2050, merge=1190/66074, ticks=73024/1350020, in_queue=1439524, util=95.39%
2.32user 1.31system 0:24.81elapsed 14%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2469minor)pagefaults 0swaps