feat(efc): add instances metho MTA-5653 #4971

ldecarvalho-doc · 2025-05-14T13:26:34Z

No description provided.

pages/environmental-footprint/additional-content/environmental-footprint-calculator.mdx

eauvray-github · 2025-05-15T12:18:23Z

pages/environmental-footprint/additional-content/environmental-footprint-calculator.mdx

+  - **CPU** - Consider the share of vCPUs 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.
+</Concept>


I think we shoud add the calculation here and may be an exemple (cf https://confluence.infra.online.net/spaces/EFP/pages/252921608/Instance+methodologie+-+Estimation)
We should also explain that we take into account the real use of the instances via the CPU usage and the consumption profiles defined by boavizta (cf https://confluence.infra.online.net/spaces/EFP/pages/252921883/Instance+methodologie+-+Usage#InstancemethodologieUsage-Version2-Consumptionprofiles)

bene2k1 · 2025-05-27T13:28:26Z

menu/navigation.json

@@ -771,6 +771,14 @@
                  {
                    "label": "Understanding your environmental footprint estimation",
                    "slug": "environmental-footprint-calculator-estimation"
+                  },
+                  {
+                    "label": "Bare Metal Footprint Calculation",


Suggested change

"label": "Bare Metal Footprint Calculation",

"label": "Bare Metal footprint calculation",

not sure but I guess no uppercase here?

Co-authored-by: Rowena Jones <36301604+RoRoJ@users.noreply.github.com>

bene2k1 · 2025-05-27T13:28:37Z

menu/navigation.json

+                    "slug": "bare-metal-env-footprint"
+                  },
+                  {
+                    "label": "Instances Footprint Calculation",


Suggested change

"label": "Instances Footprint Calculation",

"label": "Instances footprint calculation",

pages/environmental-footprint/additional-content/bare-metal-env-footprint.mdx

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

Co-authored-by: Benedikt Rollik <brollik@scaleway.com>

eauvray-github · 2025-05-27T15:04:33Z

pages/environmental-footprint/additional-content/bare-metal-env-footprint.mdx

+  posted: 2025-05-27
+categories:
+  - environmental-footprint
+  - bare-metal


May be we should precise that bare-metal = Elastic Metal and Apple silicon (and soon Dedibox)

eauvray-github · 2025-05-27T15:14:57Z

pages/environmental-footprint/additional-content/bare-metal-env-footprint.mdx

+  ServerManufacturing = (100 / 52560) * 850 = 1,62 kgCO2e
+  ```
+
+  Therefore 1,62 kgCO2e is added to the total manufacturing impact for the use of this server.


This example explain how the manufacturing impact is calculated but not the use. For the use, we will have :
server_power_consumption x usage_duration x energy_mix x DC_PUE

So for this exemple with an Elastic Metal with a power of 110w, use for 100 hour in DC5 (french energy mix = O,056kgCo2e/kwh and dc PUE = 1,16) we will have :
0,110 x 100 x 0,056 x 1,16 = 0,715 kgCo2e

eauvray-github · 2025-05-27T15:20:00Z

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

+  - **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.
+
+The calculation using the elements above can be broken down into:


We can add this to the bare metal server page too. It's a good summary of environmental footprint calculation breakdown.

eauvray-github · 2025-05-27T15:21:49Z

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

+
+To obtain an accurate calculation of the Instance's footprint, we multiply the results in each step of the [basis calculation](/environmental-footprint/additional-content/environmental-footprint-calculator/), bar the Cross-IT equipment & stock calculations step, by the `Resources_Used_VM` ratio.
+
+## Cross-IT equipment & stock calculation for Instances


There is no "special" calculation for Instance stock

eauvray-github · 2025-05-27T15:25:33Z

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

+
+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.
+
+Initially we base the calculation on a [theoretical value](https://doc.api.boavizta.org/Explanations/components/cpu/#usage-impacts) of 30% CPU usage.


for estimation data display in instance order page (cf https://www.scaleway.com/en/docs/environmental-footprint/additional-content/environmental-footprint-calculator-estimation/)

eauvray-github · 2025-05-27T15:26:08Z

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

+
+### Calculation example
+
+In the example below we will calculate the manufacturing impact allocated to an Instance for a one-year usage period.


why not do an exemple for 100hour usage like bare metal ?

eauvray-github · 2025-05-27T15:33:07Z

pages/environmental-footprint/additional-content/instances-env-footprint.mdx

+
+```
+1 / 6 x 100 x 0,425 = 7,1 kgCO2eq
+```


Can we add an exemple for the usage impact too ?

for a 100hour usage period of an instance in FR-PAR-2 with a mean of 40% for CPU usage.
in Boavizta we can get that 40% usage of a specific CPU is for exemple 80w, french energy mix is 0,056kgCo2e/kwh and dc PUE is 1.16 so we have :
0,080 x 100 x 0,056 x 1.16 = 0,52 kgCo2e

ldecarvalho-doc self-assigned this May 14, 2025

ldecarvalho-doc added type: new content New pages or categories do not merge PR that shouldn't be merged before a specific date (eg release) status: tech review Waiting for technical review status: doc review Waiting for doc team review labels May 14, 2025

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ldecarvalho-doc and others added 7 commits May 27, 2025 15:29

fix(efc): instances

19d96a5

feat(efc): instance metho

c8bb646

fix(efp): reviews

7ff4bd2

Co-authored-by: Rowena Jones <36301604+RoRoJ@users.noreply.github.com>

fix(efp): add calc example

1453b84

fix(efc): add instances page

ee04787

fix(efc): improvements

663eee4

fix(efc): new menu

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ldecarvalho-doc force-pushed the MTA-5653 branch from b4b23e2 to 2d281fd Compare May 27, 2025 13:31

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fix(efc): menu name changes

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fix(efc): review bene

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Co-authored-by: Benedikt Rollik <brollik@scaleway.com>

fix(efc): date

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eauvray-github suggested changes May 27, 2025

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feat(efc): add instances metho MTA-5653 #4971

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	"label": "Bare Metal Footprint Calculation",
	"label": "Bare Metal footprint calculation",

	"label": "Instances Footprint Calculation",
	"label": "Instances footprint calculation",


		To obtain an accurate calculation of the Instance's footprint, we multiply the results in each step of the [basis calculation](/environmental-footprint/additional-content/environmental-footprint-calculator/), bar the Cross-IT equipment & stock calculations step, by the `Resources_Used_VM` ratio.

		## Cross-IT equipment & stock calculation for Instances


		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.

		Initially we base the calculation on a [theoretical value](https://doc.api.boavizta.org/Explanations/components/cpu/#usage-impacts) of 30% CPU usage.


		### Calculation example

		In the example below we will calculate the manufacturing impact allocated to an Instance for a one-year usage period.

feat(efc): add instances metho MTA-5653 #4971

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