Compute Models in Autonomous Database

 

Compute Models in Autonomous Database

Autonomous Database offers two compute models when you create or clone an instance:

• ECPU:

  While provisioning a new database or cloning an existing database:

  • The CPU count defaults to 2 ECPUs.
  • For databases that need 2 or more ECPUs, you must specify the number of assigned as an even integer. For example, you cannot assign 3 ECPUs to a database. The next available number of ECPUs above 2 is 4.
  • An ECPU is an abstracted measure of compute resources. ECPUs are based on the number of cores elastically allocated from the shared pool of Exadata database servers and storage servers.

  
  

  OCPU: 
• While provisioning a new database, cloning an existing database:

  • The CPU count defaults to 1 OCPU.
  • For databases that need more that 1 OCPU, you must specify the number of assigned OCPUs as an integer. For example, you cannot assign 3.5 OCPUs to a database. The next available number of OCPUs above 3 is 4.

• An OCPU is a physical measure of compute resources. OCPUs are based on the physical core of a processor with hyper-threading enabled.