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Upsun User Documentation

Manage resources

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How resources work on Upsun

Understand how resources work on Upsun Flex. Learn the differences between shared and guaranteed CPU, how RAM is allocated, and how to configure scalable resources for your apps.

Resource initialization

Learn how resources are allocated by default upon first deployment, and how you can define a resource initialization strategy that better fits your needs.

Resource configuration

Configure CPU, RAM, and disk storage on a per-environment basis so your apps and services can run smoothly.

Autoscaling

Learn how autoscaling dynamically adjusts app instances based on CPU usage to keep apps responsive under load while optimizing costs.

Guaranteed resources

Learn how Guaranteed CPU on Upsun provide dedicated CPU and memory allocations for consistent, high-performance workloads.

Project build resources

Configure project build resources on Upsun.