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] [15.0% done] [ 19812/  7492 kb/s] [eta 00m:17s]
Threads: 3: [mmm] [21.1% done] [ 10012/ 14804 kb/s] [eta 00m:15s]
Threads: 3: [mmm] [29.4% done] [ 28288/  3264 kb/s] [eta 00m:12s]
Threads: 3: [mmm] [35.3% done] [ 11936/ 14652 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [38.9% done] [ 14556/  4796 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [42.1% done] [ 16668/  2468 kb/s] [eta 00m:11s]
Threads: 3: [mmm] [47.4% done] [ 16796/  9772 kb/s] [eta 00m:10s]
Threads: 3: [mmm] [52.6% done] [ 13488/  9240 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [55.0% done] [  5120/ 11364 kb/s] [eta 00m:09s]
Threads: 3: [mmm] [60.0% done] [  7332/  3368 kb/s] [eta 00m:08s]
Threads: 3: [mmm] [61.9% done] [  4604/  3972 kb/s] [eta 00m:08s]
Threads: 3: [Fmm] [63.6% done] [  3380/  3212 kb/s] [eta 00m:08s]
Threads: 3: [FFm] [65.2% done] [  4380/  3644 kb/s] [eta 00m:08s]
Threads: 3: [FFF] [100.0% done] [  2232/    16 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: [VFF] [86.4% done] [ 27840/     0 kb/s] [eta 00m:03s]
Threads: 2: [_FF] [100.0% done] [  8260/     0 kb/s] [eta 00m:00s]
Threads: 1: [__V] [95.5% done] [ 75968/     0 kb/s] [eta 00m:01s]
fio: (groupid=0): err= 0: pid=12378
  read : io=100MiB, bw=5,407KiB/s, runt= 19390msec
    clat (msec): min=    0, max=  362, avg= 4.22, stdev=28.22
    bw (KiB/s) : min=    3, max=14149, per=38.51%, avg=5663.14, stdev=4848.13
  write: io=36,092KiB, bw=1,926KiB/s, runt= 19182msec
    clat (msec): min=    0, max=  302, avg= 6.69, stdev=36.56
    bw (KiB/s) : min=    0, max=12173, per=71.80%, avg=3913.73, stdev=4312.58
  cpu          : usr=5.03%, sys=0.95%, ctx=2147
  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=89.1%, 4=1.2%, 10=4.0%, 20=3.6%, 50=0.1%, 100=0.0%
     lat (msec): 250=1.3%, 500=0.6%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12379
  read : io=100MiB, bw=5,014KiB/s, runt= 20910msec
    clat (msec): min=    0, max=  291, avg= 5.82, stdev=31.02
    bw (KiB/s) : min=    7, max=11059, per=32.19%, avg=4733.43, stdev=4129.49
  write: io=36,656KiB, bw=1,813KiB/s, runt= 20699msec
    clat (msec): min=    0, max=  238, avg= 9.71, stdev=36.43
    bw (KiB/s) : min=    0, max=12369, per=84.50%, avg=4606.07, stdev=4898.91
  cpu          : usr=4.84%, sys=1.09%, ctx=3492
  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=80.4%, 4=2.2%, 10=7.2%, 20=7.0%, 50=0.5%, 100=0.1%
     lat (msec): 250=2.0%, 500=0.4%, 750=0.0%, 1000=0.0%, >=2000=0.0%
fio: (groupid=0): err= 0: pid=12380
  read : io=100MiB, bw=4,901KiB/s, runt= 21392msec
    clat (msec): min=    0, max=  310, avg= 5.58, stdev=29.40
    bw (KiB/s) : min=   10, max=12116, per=30.04%, avg=4417.60, stdev=3914.68
  write: io=39,920KiB, bw=1,931KiB/s, runt= 21165msec
    clat (msec): min=    0, max=  297, avg= 8.74, stdev=36.07
    bw (KiB/s) : min=    0, max=17907, per=69.42%, avg=3784.22, stdev=4735.52
  cpu          : usr=4.56%, sys=1.23%, ctx=4365
  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=80.9%, 4=1.9%, 10=6.3%, 20=7.0%, 50=1.3%, 100=0.4%
     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=14,705KiB/s, minb=4,901KiB/s, maxb=5,407KiB/s, mint=19390msec, maxt=21392msec
  WRITE: io=110MiB, aggrb=5,451KiB/s, minb=1,813KiB/s, maxb=1,931KiB/s, mint=19390msec, maxt=21392msec

Disk stats (read/write):
  sda: ios=9802/1384, merge=0/26812, ticks=40884/1455600, in_queue=1496480, util=97.84%
2.97user 0.69system 0:21.79elapsed 16%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (9802major+96177minor)pagefaults 0swaps