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] [16.7% done] [ 26052/  8100 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [25.0% done] [ 25648/  5680 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [29.4% done] [ 22348/  8764 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [35.3% done] [ 28371/  9869 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [43.8% done] [ 22996/  4212 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [50.0% done] [ 22936/  2232 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [56.2% done] [  9340/  9968 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [58.8% done] [  8660/  4436 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [64.7% done] [  7704/  2940 kb/s] [eta 00m:06s]
Threads: 3: [Fmm] [66.7% done] [  3364/  3520 kb/s] [eta 00m:06s]
Threads: 3: [Fmm] [68.4% done] [  3392/  3316 kb/s] [eta 00m:06s]
Threads: 3: [FFF] [100.0% done] [  2114/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [ 19080/     0 kb/s] [eta 00m:00s]
Threads: 2: [_FF] [100.0% done] [     0/     0 kb/s] [eta 00m:00s]
fio: (groupid=0): err= 0: pid=30467
  read : io=100MiB, bw=7,039KiB/s, runt= 14896msec
    clat (msec): min=    0, max=  329, avg= 4.96, stdev=29.98
    bw (KiB/s) : min=    6, max=18139, per=40.54%, avg=7397.30, stdev=6271.81
  write: io=19,080KiB, bw=1,321KiB/s, runt= 14782msec
    clat (msec): min=    0, max=  245, avg= 5.20, stdev=30.25
    bw (KiB/s) : min=    0, max=11457, per=94.64%, avg=4316.62, stdev=5148.57
  cpu          : usr=5.77%, sys=1.10%, ctx=2065
  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=88.3%, 4=1.3%, 10=4.0%, 20=4.0%, 50=0.4%, 100=0.0%
     lat (msec): 250=1.7%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30468
  read : io=100MiB, bw=6,082KiB/s, runt= 17239msec
    clat (msec): min=    0, max=  316, avg= 4.43, stdev=27.14
    bw (KiB/s) : min=    3, max=15428, per=33.58%, avg=6127.58, stdev=5093.39
  write: io=33,308KiB, bw=2,000KiB/s, runt= 17047msec
    clat (msec): min=    0, max=  410, avg= 8.51, stdev=39.57
    bw (KiB/s) : min=    0, max=14213, per=88.74%, avg=4047.29, stdev=4227.88
  cpu          : usr=5.59%, sys=1.25%, ctx=3011
  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=85.7%, 4=2.0%, 10=4.8%, 20=4.7%, 50=0.6%, 100=0.0%
     lat (msec): 250=1.9%, 500=0.2%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=30469
  read : io=100MiB, bw=6,099KiB/s, runt= 17191msec
    clat (msec): min=    0, max=  321, avg= 5.90, stdev=31.10
    bw (KiB/s) : min=   32, max=15174, per=32.17%, avg=5869.30, stdev=4996.55
  write: io=23,588KiB, bw=1,416KiB/s, runt= 17054msec
    clat (msec): min=    0, max=  223, avg= 6.85, stdev=30.47
    bw (KiB/s) : min=    0, max=12664, per=97.99%, avg=4469.10, stdev=5224.90
  cpu          : usr=5.37%, sys=0.98%, ctx=3187
  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=83.0%, 4=2.0%, 10=5.4%, 20=6.4%, 50=0.7%, 100=0.1%
     lat (msec): 250=1.8%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=18,247KiB/s, minb=6,082KiB/s, maxb=7,039KiB/s, mint=14896msec, maxt=17239msec
  WRITE: io=75,976KiB, aggrb=4,561KiB/s, minb=1,321KiB/s, maxb=2,000KiB/s, mint=14896msec, maxt=17239msec

Disk stats (read/write):
  sda: ios=8137/1145, merge=0/17916, ticks=35500/972676, in_queue=1008176, util=97.50%
2.75user 0.62system 0:17.70elapsed 19%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (8137major+88649minor)pagefaults 0swaps