I wanted to give a boost to one of my Azure virtual machines that is being used as a build server for processing thousands of small files in bursts. So I decided to add a small 32 GiB premium storage (SSD) disk.
But while reading Microsoft documentation for Azure disks, something puzzled me:
For a 32 GiB standard disk (S4):
IOPS per disk 500
Throughput per disk 60 MB/sec
For a 32 GiB premium disk (P4):
IOPS per disk 120
Throughput per disk 25 MB/sec
Does this mean that for small disks there is no point of upgrading to premium SSD because performance will be actually lower? It does not make logical sense to me. Is it true or I misunderstand something?