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] [27.3% done] [  7495/ 96646 kb/s] [eta 00m:08s]
Threads: 3: [FmF] [28.6% done] [  3735/ 49147 kb/s] [eta 00m:10s]
Threads: 3: [FFF] [100.0% done] [   608/ 59712 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [68.2% done] [  2524/     0 kb/s] [eta 00m:07s]
Threads: 3: [VVV] [69.6% done] [ 19856/     0 kb/s] [eta 00m:07s]
Threads: 3: [VVV] [73.9% done] [ 32588/     0 kb/s] [eta 00m:06s]
Threads: 3: [VVV] [78.3% done] [ 23864/     0 kb/s] [eta 00m:05s]
Threads: 3: [VVV] [86.4% done] [ 31120/     0 kb/s] [eta 00m:03s]
Threads: 3: [VVV] [90.9% done] [ 34888/     0 kb/s] [eta 00m:02s]
Threads: 3: [VVV] [100.0% done] [ 37431/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 27577/     0 kb/s] [eta 00m:00s]
Threads: 3: [VVV] [100.0% done] [ 30152/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=1075
  read : io=100MiB, bw=4,276KiB/s, runt= 24522msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  959, avg=56.45, stdev=108.17
    bw (KiB/s) : min=    7, max=26544, per=62.78%, avg=8050.05, stdev=6887.73
  write: io=90,736KiB, bw=6,163KiB/s, runt= 15076msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  159, avg= 1.13, stdev=10.50
    bw (KiB/s) : min=    0, max=41979, per=114.18%, avg=20989.50, stdev=29683.64
  cpu          : usr=2.99%, sys=1.44%, ctx=5397
  IO depths    : 1=1.7%, 2=55.2%, 4=30.5%, 8=12.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=0.7%, 10=21.1%, 20=12.9%, 50=4.3%, 100=1.6%
     lat (msec): 250=8.2%, 500=1.8%, 750=0.4%, 1000=0.2%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1076
  read : io=100MiB, bw=4,386KiB/s, runt= 23902msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  805, avg=60.57, stdev=104.32
    bw (KiB/s) : min=   15, max=22202, per=58.33%, avg=7478.96, stdev=5706.56
  write: io=85,304KiB, bw=5,795KiB/s, runt= 15072msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  302, avg= 1.50, stdev=15.72
    bw (KiB/s) : min=    0, max= 9893, per=26.91%, avg=4946.50, stdev=6995.41
  cpu          : usr=2.98%, sys=1.71%, ctx=5432
  IO depths    : 1=1.4%, 2=52.7%, 4=29.8%, 8=16.1%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=47.1%, 4=0.8%, 10=17.7%, 20=13.5%, 50=7.0%, 100=2.4%
     lat (msec): 250=8.6%, 500=2.0%, 750=0.5%, 1000=0.1%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=1077
  read : io=100MiB, bw=4,318KiB/s, runt= 24254msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  615, avg=52.41, stdev=90.04
    bw (KiB/s) : min=    3, max=16339, per=71.08%, avg=9113.30, stdev=5433.26
  write: io=94,616KiB, bw=6,433KiB/s, runt= 15060msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  254, avg= 0.69, stdev=10.04
    bw (KiB/s) : min=    0, max=129507, per=352.25%, avg=64753.50, stdev=91575.28
  cpu          : usr=3.12%, sys=1.60%, ctx=5358
  IO depths    : 1=1.1%, 2=55.2%, 4=31.2%, 8=12.5%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=49.6%, 4=0.1%, 10=18.0%, 20=16.1%, 50=5.0%, 100=1.2%
     lat (msec): 250=7.1%, 500=2.3%, 750=0.2%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=12,822KiB/s, minb=4,276KiB/s, maxb=4,386KiB/s, mint=23902msec, maxt=24522msec
  WRITE: io=264MiB, aggrb=18,383KiB/s, minb=5,795KiB/s, maxb=6,433KiB/s, mint=23902msec, maxt=24522msec

Disk stats (read/write):
  sda: ios=3527/2034, merge=1328/65567, ticks=80940/1762216, in_queue=1843156, util=98.85%
2.23user 1.21system 0:24.83elapsed 13%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2471minor)pagefaults 0swaps