cluodatcost IOPS

root@ubuntu:~# cat hybrid.ini
[readtest]
blocksize=4k
filename=/tmp/fio
rw=randread
direct=1
buffered=0
ioengine=libaio
iodepth=32
size=1G
[writetest]
blocksize=4k
filename=/tmp/fio
rw=randwrite
direct=1
buffered=0
ioengine=libaio
iodepth=32
size=1G

root@ubuntu:~# fio hybrid.ini
readtest: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=32
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=32
fio-2.1.3
Starting 2 processes
readtest: Laying out IO file(s) (1 file(s) / 1024MB)
Jobs: 1 (f=1): [r_] [100.0% done] [754KB/0KB/0KB /s] [188/0/0 iops] [eta 00m:00s]
readtest: (groupid=0, jobs=1): err= 0: pid=1728: Thu Jan 14 02:14:58 2016
  read : io=1024.0MB, bw=408587B/s, iops=99, runt=2627935msec
    slat (usec): min=4, max=746422, avg=369.07, stdev=10886.84
    clat (usec): min=223, max=1263.9K, avg=320418.61, stdev=195587.43
     lat (usec): min=670, max=1264.5K, avg=320788.18, stdev=195435.71
    clat percentiles (msec):
     |  1.00th=[    4],  5.00th=[   16], 10.00th=[   79], 20.00th=[  176],
     | 30.00th=[  217], 40.00th=[  245], 50.00th=[  269], 60.00th=[  322],
     | 70.00th=[  429], 80.00th=[  498], 90.00th=[  578], 95.00th=[  701],
     | 99.00th=[  832], 99.50th=[  857], 99.90th=[  988], 99.95th=[ 1020],
     | 99.99th=[ 1270]
    bw (KB  /s): min=    6, max=  811, per=100.00%, avg=402.18, stdev=124.48
    lat (usec) : 250=0.01%, 500=0.02%, 750=0.03%, 1000=0.02%
    lat (msec) : 2=0.16%, 4=1.02%, 10=3.13%, 20=0.95%, 50=2.00%
    lat (msec) : 100=5.35%, 250=30.27%, 500=37.88%, 750=15.81%, 1000=3.29%
    lat (msec) : 2000=0.08%
  cpu          : usr=0.06%, sys=0.25%, ctx=16904, majf=0, minf=62
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=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=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued    : total=r=262144/w=0/d=0, short=r=0/w=0/d=0
writetest: (groupid=0, jobs=1): err= 0: pid=1729: Thu Jan 14 02:14:58 2016
  write: io=1024.0MB, bw=408911B/s, iops=99, runt=2625855msec
    slat (usec): min=5, max=781182, avg=284.14, stdev=9578.89
    clat (msec): min=1, max=1505, avg=320.25, stdev=193.29
     lat (msec): min=1, max=1505, avg=320.53, stdev=193.19
    clat percentiles (msec):
     |  1.00th=[    5],  5.00th=[   24], 10.00th=[   85], 20.00th=[  178],
     | 30.00th=[  217], 40.00th=[  245], 50.00th=[  269], 60.00th=[  322],
     | 70.00th=[  429], 80.00th=[  494], 90.00th=[  578], 95.00th=[  693],
     | 99.00th=[  824], 99.50th=[  857], 99.90th=[  971], 99.95th=[ 1020],
     | 99.99th=[ 1156]
    bw (KB  /s): min=    6, max=  934, per=100.00%, avg=402.26, stdev=123.15
    lat (msec) : 2=0.05%, 4=0.76%, 10=3.00%, 20=0.94%, 50=1.83%
    lat (msec) : 100=5.54%, 250=31.02%, 500=37.73%, 750=15.86%, 1000=3.20%
    lat (msec) : 2000=0.07%
  cpu          : usr=0.06%, sys=0.27%, ctx=17556, majf=0, minf=28
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=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=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued    : total=r=0/w=262144/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
   READ: io=1024.0MB, aggrb=399KB/s, minb=399KB/s, maxb=399KB/s, mint=2627935msec, maxt=2627935msec
  WRITE: io=1024.0MB, aggrb=399KB/s, minb=399KB/s, maxb=399KB/s, mint=2625855msec, maxt=2625855msec

Disk stats (read/write):
    dm-0: ios=262196/263713, merge=0/0, ticks=82227256/82904072, in_queue=170103132, util=100.00%, aggrios=262196/263185, aggrmerge=0/528, aggrticks=82231576/82750956, aggrin_queue=164982140, aggrutil=100.00%
  sda: ios=262196/263185, merge=0/528, ticks=82231576/82750956, in_queue=164982140, util=100.00%