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] [15.8% done] [ 25168/  7108 kb/s] [eta 00m:16s]
Threads: 3: [mmm] [23.5% done] [ 10225/ 25460 kb/s] [eta 00m:13s]
Threads: 3: [mmm] [31.2% done] [ 12920/ 16832 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [37.5% done] [ 12724/ 15728 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [41.2% done] [ 19968/  8248 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [47.1% done] [ 15852/  4596 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [52.9% done] [ 18148/   180 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [58.8% done] [ 16016/  3796 kb/s] [eta 00m:07s]
Threads: 3: [mmm] [61.1% done] [  6120/  4056 kb/s] [eta 00m:07s]
Threads: 3: [Fmm] [63.2% done] [  2684/  4244 kb/s] [eta 00m:07s]
Threads: 3: [Fmm] [65.0% done] [  3236/  4576 kb/s] [eta 00m:07s]
Threads: 3: [FmF] [66.7% done] [  3012/  2408 kb/s] [eta 00m:07s]
Threads: 3: [FFF] [100.0% done] [     0/   556 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: [EFF] [100.0% done] [ 63028/     0 kb/s] [eta 00m:00s]
Threads: 2: [_VV] [76.9% done] [ 45083/     0 kb/s] [eta 00m:06s]
fio: (groupid=0): err= 0: pid=12363
  read : io=100MiB, bw=5,434KiB/s, runt= 19294msec
    clat (msec): min=    0, max=  317, avg= 4.19, stdev=28.25
    bw (KiB/s) : min=    0, max= 9703, per=28.03%, avg=4294.50, stdev=3389.97
  write: io=63,028KiB, bw=3,408KiB/s, runt= 18937msec
    clat (msec): min=    0, max=  250, avg= 4.95, stdev=23.96
    bw (KiB/s) : min=    0, max=31096, per=140.75%, avg=9798.91, stdev=10004.08
  cpu          : usr=5.95%, sys=1.47%, ctx=3117
  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=86.9%, 4=1.4%, 10=4.4%, 20=4.8%, 50=0.7%, 100=0.2%
     lat (msec): 250=1.0%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12364
  read : io=100MiB, bw=5,140KiB/s, runt= 20399msec
    clat (msec): min=    0, max=  331, avg= 4.86, stdev=28.92
    bw (KiB/s) : min=   11, max=12571, per=37.50%, avg=5744.75, stdev=4397.56
  write: io=36,668KiB, bw=1,859KiB/s, runt= 20188msec
    clat (msec): min=    0, max=  701, avg= 8.97, stdev=43.89
    bw (KiB/s) : min=    0, max=17043, per=68.10%, avg=4741.46, stdev=6002.60
  cpu          : usr=4.90%, sys=0.86%, ctx=3088
  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=2.6%, 10=6.0%, 20=5.3%, 50=0.5%, 100=0.6%
     lat (msec): 250=1.3%, 500=0.5%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12365
  read : io=100MiB, bw=5,107KiB/s, runt= 20532msec
    clat (msec): min=    0, max=  336, avg= 4.59, stdev=29.54
    bw (KiB/s) : min=    1, max=16277, per=36.72%, avg=5626.00, stdev=4754.92
  write: io=38,412KiB, bw=1,936KiB/s, runt= 20312msec
    clat (msec): min=    0, max=  302, avg= 6.08, stdev=31.97
    bw (KiB/s) : min=    0, max=11660, per=66.99%, avg=4663.57, stdev=4681.37
  cpu          : usr=5.05%, sys=1.01%, ctx=2553
  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=89.0%, 4=1.2%, 10=3.3%, 20=3.7%, 50=0.6%, 100=0.1%
     lat (msec): 250=1.4%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%

Run status group 0 (all jobs):
   READ: io=300MiB, aggrb=15,321KiB/s, minb=5,107KiB/s, maxb=5,434KiB/s, mint=19294msec, maxt=20532msec
  WRITE: io=135MiB, aggrb=6,962KiB/s, minb=1,859KiB/s, maxb=3,408KiB/s, mint=19294msec, maxt=20532msec

Disk stats (read/write):
  sda: ios=8548/1408, merge=0/33260, ticks=36680/1617492, in_queue=1654172, util=98.34%
3.19user 0.74system 0:20.78elapsed 18%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (8548major+103791minor)pagefaults 0swaps