Standard_DS12_v2 by Microsoft Azure


I/O rate testing are conducted with local and block storages attached to the instance. We use the well-known open-source tool FIO. To express IOPS the following parameters are used:

  • 4K block
  • Random access
  • No filesystem (except for write access with root volume)
  • Avoidance of cache and buffer
Specifications:
CPU
4
RAM
28.0 GB
Extra
1x 56 GB N/A

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Read Write
Max 510 510
Average 503 495
Deviation 10.41 21.93
Min 446 421

Standard_DS12_v2 local disk

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Read Write
Max 16531 16531
Average 16524 16523
Deviation 3.06 7.46
Min 16519 16503