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] [13.6% done] [ 10884/ 21824 kb/s] [eta 00m:19s]
Threads: 3: [mmm] [21.1% done] [ 22308/ 12556 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [25.0% done] [ 23268/  5428 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [31.6% done] [ 15168/  9124 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [35.0% done] [  5136/ 12416 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [42.1% done] [ 11068/ 13424 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [47.4% done] [ 15728/  9768 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [52.6% done] [ 10448/  7156 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [55.0% done] [  2706/  6854 kb/s] [eta 00m:09s]
Threads: 3: [Fmm] [57.1% done] [  5808/  1932 kb/s] [eta 00m:09s]
Threads: 3: [FFm] [59.1% done] [  4780/  1920 kb/s] [eta 00m:09s]
Threads: 3: [FFm] [63.6% done] [  3820/     0 kb/s] [eta 00m:08s]
Threads: 3: [FFm] [65.2% done] [  5569/     0 kb/s] [eta 00m:08s]
Threads: 3: [FFF] [100.0% done] [  3132/    44 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: 2: [F_F] [100.0% done] [ 34276/     0 kb/s] [eta 00m:00s]
Threads: 1: [__F] [100.0% done] [ 66220/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=4540
  read : io=100MiB, bw=5,015KiB/s, runt= 20908msec
    clat (msec): min=    0, max=  331, avg= 2.71, stdev=22.04
    bw (KiB/s) : min=    4, max=13689, per=28.57%, avg=4160.53, stdev=5011.95
  write: io=66,220KiB, bw=3,303KiB/s, runt= 20529msec
    clat (msec): min=    0, max=  285, avg= 6.82, stdev=34.33
    bw (KiB/s) : min=    0, max=24787, per=98.31%, avg=6659.22, stdev=6751.14
  cpu          : usr=5.36%, sys=1.21%, ctx=1922
  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=91.5%, 4=0.7%, 10=2.7%, 20=2.8%, 50=0.3%, 100=0.1%
     lat (msec): 250=1.5%, 500=0.3%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4541
  read : io=100MiB, bw=5,365KiB/s, runt= 19543msec
    clat (msec): min=    0, max=  317, avg= 4.40, stdev=25.27
    bw (KiB/s) : min=   13, max=15528, per=43.02%, avg=6264.95, stdev=5411.59
  write: io=34,276KiB, bw=1,814KiB/s, runt= 19342msec
    clat (msec): min=    0, max=  277, avg= 6.91, stdev=30.88
    bw (KiB/s) : min=    0, max=18460, per=80.59%, avg=5459.25, stdev=5637.55
  cpu          : usr=5.04%, sys=1.06%, ctx=2918
  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=85.0%, 4=1.7%, 10=5.6%, 20=4.9%, 50=0.4%, 100=0.1%
     lat (msec): 250=1.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=4542
  read : io=100MiB, bw=4,854KiB/s, runt= 21598msec
    clat (msec): min=    0, max=  241, avg= 5.28, stdev=23.39
    bw (KiB/s) : min=    6, max=13065, per=31.92%, avg=4648.25, stdev=3999.60
  write: io=40,864KiB, bw=1,958KiB/s, runt= 21366msec
    clat (msec): min=    0, max=  579, avg=11.62, stdev=45.85
    bw (KiB/s) : min=    0, max=13067, per=56.62%, avg=3835.32, stdev=4151.57
  cpu          : usr=4.89%, sys=1.07%, ctx=4899
  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=2.0%, 10=7.3%, 20=8.0%, 50=1.4%, 100=0.9%
     lat (msec): 250=2.1%, 500=0.1%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=14,564KiB/s, minb=4,854KiB/s, maxb=5,365KiB/s, mint=19543msec, maxt=21598msec
  WRITE: io=138MiB, aggrb=6,774KiB/s, minb=1,814KiB/s, maxb=3,303KiB/s, mint=19543msec, maxt=21598msec

Disk stats (read/write):
  sda: ios=9462/1377, merge=0/34037, ticks=37536/1624540, in_queue=1662076, util=97.95%
3.16user 0.76system 0:22.00elapsed 17%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (9462major+103694minor)pagefaults 0swaps