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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ dates:
validation: 2025-10-01
posted: 2025-05-27
---
import image from './assets/scaleway-allocation-rules-instances.webp'
import image from './assets/scaleway-allocation-rules-instances.jpg'


## Console overview
Expand All @@ -19,8 +19,8 @@ For Virtual Instances, the calculation of the environmental footprint takes into
## Calculation aspects

The following elements are considered in the Instance footprint calculation:
- **Hypervisor resources** - the resources (CPU, RAM, and disk, for example) used in the physical hypervisor servers that create and run the virtual Instances.
- **Instance offer resources** - the vCPU, RAM, and disk resources used when you use an Instance.
- **Hypervisor resources** - the resources (CPU, GPU, RAM, and disk, for example) used in the physical hypervisor servers that create and run the virtual Instances.
- **Instance offer resources** - the vCPU, GPU, RAM, and disk resources used when you use an Instance.

The calculation using the elements above can be broken down into:

Expand All @@ -43,7 +43,8 @@ The calculation using the elements above can be broken down into:

When calculating an Instance's footprint, we consider the resources based on their relative usage on the hypervisor to ensure an accurate distribution of their proportional consumption.

- **CPU** - Consider the share of vCPUs reserved compared to the total number of physical cores available.
- **CPUs** - Consider the share of vCPUs reserved compared to the total number of physical cores available.
- **GPUs** - Consider the share of GPUs reserved compared to the total number of physical cores available.
- **RAM** - Consider the share of allocated RAM compared to the total RAM of the hypervisor.
- **Storage** - Consider the use of allocated storage compared to the total capacity of the hypervisor.

Expand All @@ -65,6 +66,10 @@ A consumption profile is a formula that takes in a given workload (e.g. % CPU us

We use the [consumption profiles defined by Boavizta](https://doc.api.boavizta.org/Reference/routes/#consumption-profile-routes) for the CPUs used on Scaleway Instances.

<Message type="important">
Boavizta consumption profiles are currently only available for CPU Instances. Electricity consumption for GPU Instances is calculated based on an average consumption of the GPU offers.
</Message>

For the [Environmental Footprint Estimation](/environmental-footprint/additional-content/environmental-footprint-calculator-estimation/), we base the calculation on a theoretical value of 30% CPU usage. On your [monthly report](/environmental-footprint/how-to/track-monthly-footprint/), we use your real CPU consumption to provide you with the most reliable data possible.

### Calculation example
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