You can change the amount of resources allocated to a content's sandbox by selecting Stack in the left side menu and scrolling to the Sandbox Resources section.
Sandbox Resources settings
The amount of resources allocated to a content's sandbox are strictly limited based on the Sizes below:
5% Priority 1
10% Priority 2
10% Priority 3
Contents using a Medium or Large sandbox will incur a 2x and 4x billable minute multiple, respectively. You can view your daily updated usage on your organization's page at any time.
These resources are explained in detail below.
Each sandbox is guaranteed a minimum amount of RAM based on its profile. However, Next Tech's sandbox technology allows extra unused RAM to be used by sandboxes that currently need more RAM than their minimum. The RAM maximum determines the most RAM they can use. This flexible system allows all sandboxes to achieve top performance, even those with smaller profiles.
Multiple sandboxes run on a single "host". Each of these hosts has CPU percentages have 16 2.6 GHz Intel Xeon E5 VCPUS shared across all sandboxes. The CPU percentage dictates how much of the overall CPU can be used by the container. The CPU priorities determine which sandbox gets access to CPU cycles first, if many sandboxes on the same host all have high CPU demands at the same time.
Disk limits are applied on top of any existing disk size requirements by the sandbox's stack. Keep in mind that only 100MB of files are backed up in the sandbox's working directory.