file1: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=16
fio-2.16
Starting 1 process
file1: Laying out IO file(s) (1 file(s) / 10240MB)
Jobs: 1 (f=1): [r(1)] [100.0% done] [580KB/0KB/0KB /s] [145/0/0 iops] [eta 00m:00s]
file1: (groupid=0, jobs=1): err= 0: pid=9415: Fri Apr 24 11:16:47 2020
  read : io=484116KB, bw=550813B/s, iops=134, runt=900005msec
    slat (usec): min=63, max=480029, avg=7422.08, stdev=9400.41
    clat (usec): min=11, max=1068.3K, avg=111540.99, stdev=46934.22
     lat (msec): min=19, max=1194, avg=118.96, stdev=48.76
    clat percentiles (msec):
     |  1.00th=[   81],  5.00th=[   88], 10.00th=[   91], 20.00th=[   96],
     | 30.00th=[   99], 40.00th=[  102], 50.00th=[  105], 60.00th=[  108],
     | 70.00th=[  112], 80.00th=[  116], 90.00th=[  123], 95.00th=[  137],
     | 99.00th=[  334], 99.50th=[  429], 99.90th=[  717], 99.95th=[  791],
     | 99.99th=[  857]
    lat (usec) : 20=0.01%
    lat (msec) : 20=0.01%, 50=0.01%, 100=34.18%, 250=63.84%, 500=1.64%
    lat (msec) : 750=0.24%, 1000=0.09%, 2000=0.01%
  cpu          : usr=0.22%, sys=0.82%, ctx=121068, majf=0, minf=23
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=100.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=121029/w=0/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=16

Run status group 0 (all jobs):
   READ: io=484116KB, aggrb=537KB/s, minb=537KB/s, maxb=537KB/s, mint=900005msec, maxt=900005msec

Disk stats (read/write):
    dm-0: ios=121017/9, merge=0/0, ticks=888496/2580, in_queue=891144, util=98.88%, aggrios=121029/1337, aggrmerge=0/0, aggrticks=0/0, aggrin_queue=0, aggrutil=0.00%
    md1: ios=121029/1337, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=60514/1851, aggrmerge=0/547, aggrticks=443918/108090, aggrin_queue=551912, aggrutil=94.42%
  sdb: ios=570/1851, merge=0/547, ticks=47332/177568, in_queue=224836, util=17.88%
  sda: ios=120459/1851, merge=0/547, ticks=840504/38612, in_queue=878988, util=94.42%