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Mar 4, 2025
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fix(srv): add info on function concurrency #4527

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fix(srv): add info on function concurrency
SamyOubouaziz Mar 3, 2025
72a99f5
fix(srv): add info on function concurrency
SamyOubouaziz Mar 3, 2025
e55ec8a
Update pages/serverless-functions/concepts.mdx
SamyOubouaziz Mar 4, 2025
54347a1
Update pages/serverless-functions/reference-content/functions-limitat…
SamyOubouaziz Mar 4, 2025
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4 changes: 4 additions & 0 deletions pages/serverless-functions/concepts.mdx
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Expand Up @@ -39,6 +39,10 @@ Startup process steps are:

[How to reduce cold starts](/faq/serverless-functions/#how-to-reduce-cold-start-of-serverless-functions)

## Concurrency

Concurrency defines the capacity of a resource to process several requests at the same time. A single instance of a function has a concurrency of `1` as it handles requests sequentially, one by one, but a Serverless Function can have several instances running at the same time, depending on its [autoscaling](#autoscaling) configuration.

## Container Registry

Container Registry is the place where your images of your Serverless Functions are stored before being deployed.
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22 changes: 12 additions & 10 deletions pages/serverless-functions/reference-content/functions-limitations.mdx
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Expand Up @@ -21,27 +21,29 @@ This section contains usage limits that apply when using Serverless Functions.
| Functions | Max number | 1000* | Organization |
| Total function memory\** | Max size | 600 GiB | Organization |
| Custom domains | Max number | 50 | Function |
| Zip Size | Max size | 100 MiB | Function |
| Code Size | Max size | 500 MiB | Function |
| Zip size | Max size | 100 MiB | Function |
| Code size | Max size | 500 MiB | Function |
| Temporary disk size | Max size | 1024 MiB | Function instance |
| Invocation rate | Max number | 1000 per second | Function |
| Concurrency | Max | 1 | Function instance |
| Scaling (Number of simultaneous Function Instances) | Max | 50 | Function |
| Environment Variables | Max number | 100 | Function + Namespace |
| Environment Variables | Max size | 1000 chars | Environment Variable |
| Secret Environment Variables | Max number | 100 | Function + Namespace |
| Secret Environment Variables | Max size | 65536 bytes | Secret Environment Variable |
| Concurrency (number of simultaneous requests)\*** | Max | 1 | Function instance |
| Scaling (number of simultaneous function instances) | Max | 50 | Function |
| Environment variables | Max number | 100 | Function + Namespace |
| Environment variables | Max size | 1000 chars | Environment variable |
| Secret environment variables | Max number | 100 | Function + Namespace |
| Secret environment variables | Max size | 65536 bytes | Secret environment variable |
| Time before scale to zero | Time | 15 minutes | Instance |
| Time before scale down | Time | 30 seconds | Instance |
| Max HTTP request duration\*** | Max | 15 minutes | Request |
| Max HTTP request duration\**** | Max | 15 minutes | Request |
| Payload | Max size | 6 MiB | Request |
| Logs | Logs | 30000 per minute | Project |

\* Lower limits may apply before account verification. [Contact our support team](https://console.scaleway.com/support) if you have any questions.

\** Total function memory is the sum of the memory allocated to all your functions at their maximum Scale.

\*** Maximum duration of a single HTTP request before this request is timed out. Use [Serverless Jobs](/serverless-jobs/) for tasks up to 24h.
\*** Each instance of a function can handle a single request at a time, but a function can have several instances running at the same time.

\**** Maximum duration of a single HTTP request before this request is timed out. Use [Serverless Jobs](/serverless-jobs/) for tasks up to 24h.

These limits are enforced as [Organization quotas](/organizations-and-projects/additional-content/organization-quotas/#serverless-functions).

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