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] [  2938/  6975 kb/s] [eta 00m:57s]
Threads: 3: [mmF] [6.7% done] [  2489/  6971 kb/s] [eta 00m:56s]
Threads: 3: [mFF] [8.3% done] [  1591/ 45182 kb/s] [eta 00m:55s]
Threads: 3: [mFF] [10.0% done] [  1028/     0 kb/s] [eta 00m:54s]
Threads: 3: [mFF] [11.7% done] [  1472/     0 kb/s] [eta 00m:53s]
Threads: 3: [mFF] [13.3% done] [  1079/     0 kb/s] [eta 00m:52s]
Threads: 3: [mFF] [15.0% done] [  1079/     0 kb/s] [eta 00m:51s]
Threads: 3: [mFF] [34.5% done] [  1146/ 34016 kb/s] [eta 00m:19s]
Threads: 3: [mFF] [34.4% done] [  1067/     0 kb/s] [eta 00m:21s]
Threads: 3: [mFF] [36.4% done] [   894/   669 kb/s] [eta 00m:21s]
Threads: 3: [mFF] [54.2% done] [  1126/ 25316 kb/s] [eta 00m:11s]
Threads: 3: [FFF] [100.0% done] [     0/ 20917 kb/s] [eta 00m:00s]
Threads: 3: [FFF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
Threads: 3: [FVV] [69.6% done] [  6364/     0 kb/s] [eta 00m:07s]
Threads: 3: [FVV] [73.9% done] [ 25706/     0 kb/s] [eta 00m:06s]
Threads: 3: [FVV] [85.7% done] [ 22933/     0 kb/s] [eta 00m:03s]
Threads: 3: [FVV] [90.5% done] [ 25816/     0 kb/s] [eta 00m:02s]
Threads: 3: [FVV] [100.0% done] [ 31400/     0 kb/s] [eta 00m:00s]
Threads: 3: [FVV] [100.0% done] [ 27967/     0 kb/s] [eta 00m:00s]
Threads: 3: [FVV] [100.0% done] [ 19010/     0 kb/s] [eta 00m:00s]
Threads: 2: [VV_] [68.6% done] [ 30656/     0 kb/s] [eta 00m:11s]
Threads: 1: [V__] [83.3% done] [ 25643/     0 kb/s] [eta 00m:05s]
Threads: 1: [V__] [100.0% done] [ 34394/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=5146
  read : io=100MiB, bw=3,905KiB/s, runt= 26849msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1083, avg=73.12, stdev=191.22
    bw (KiB/s) : min=    7, max=35493, per=51.71%, avg=6056.61, stdev=10935.11
  write: io=82,820KiB, bw=3,642KiB/s, runt= 23282msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  835, avg= 6.68, stdev=57.32
    bw (KiB/s) : min=    0, max=15017, per=32.40%, avg=3975.00, stdev=7369.99
  cpu          : usr=2.46%, sys=1.22%, ctx=5688
  IO depths    : 1=3.2%, 2=56.5%, 4=27.5%, 8=12.8%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=48.8%, 4=0.1%, 10=16.5%, 20=21.1%, 50=5.6%, 100=0.9%
     lat (msec): 250=1.4%, 500=2.0%, 750=1.8%, 1000=1.5%, >=2000=0.2%
fio: (groupid=0): err= 0: pid=5147
  read : io=100MiB, bw=4,353KiB/s, runt= 24069msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max= 1230, avg=52.51, stdev=125.09
    bw (KiB/s) : min=    1, max=22830, per=65.86%, avg=7714.09, stdev=6676.80
  write: io=95,424KiB, bw=6,243KiB/s, runt= 15650msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  462, avg= 2.60, stdev=26.31
    bw (KiB/s) : min=    0, max=15794, per=67.16%, avg=8239.67, stdev=7919.27
  cpu          : usr=3.21%, sys=1.76%, ctx=5422
  IO depths    : 1=3.0%, 2=58.6%, 4=28.2%, 8=10.2%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=51.6%, 4=0.4%, 10=15.6%, 20=18.0%, 50=5.3%, 100=0.5%
     lat (msec): 250=5.9%, 500=1.4%, 750=0.6%, 1000=0.3%, >=2000=0.1%
fio: (groupid=0): err= 0: pid=5148
  read : io=100MiB, bw=4,479KiB/s, runt= 23410msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  743, avg=41.70, stdev=85.76
    bw (KiB/s) : min=   12, max=18587, per=88.93%, avg=10415.89, stdev=6652.62
  write: io=98MiB, bw=6,580KiB/s, runt= 15672msec
    slat (msec): min=    0, max=    0, avg= 0.00, stdev= 0.00
    clat (msec): min=    0, max=  667, avg= 1.91, stdev=27.06
    bw (KiB/s) : min=    0, max=33257, per=135.53%, avg=16628.50, stdev=23516.25
  cpu          : usr=3.54%, sys=1.71%, ctx=5233
  IO depths    : 1=3.0%, 2=58.5%, 4=29.8%, 8=8.7%, 16=0.0%, 32=0.0%, >=64=0.0%
     lat (msec): 2=50.9%, 4=1.3%, 10=17.2%, 20=15.7%, 50=6.4%, 100=0.8%
     lat (msec): 250=6.3%, 500=0.9%, 750=0.4%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=11,713KiB/s, minb=3,905KiB/s, maxb=4,479KiB/s, mint=23410msec, maxt=26849msec
  WRITE: io=272MiB, aggrb=12,269KiB/s, minb=3,642KiB/s, maxb=6,580KiB/s, mint=23410msec, maxt=26849msec

Disk stats (read/write):
  sda: ios=3361/2375, merge=1256/67113, ticks=84192/2651504, in_queue=2750272, util=97.80%
2.31user 1.20system 0:27.33elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+2476minor)pagefaults 0swaps