Configure memory and vCPU limits (1st gen)

Note: This content applies only to Cloud Run functions (1st gen)—formerly Cloud Functions (1st gen).

For the Cloud Run functions of this document, see Configure memory and vCPU limits.

You can provision Cloud Run functions with different amounts of memory to control the limit on how much memory a function can use. The amount of allocated memory you choose corresponds to an amount of allocated CPU for your function. Available memory and CPU tiers are shown in the following table:

Memory	CPU
128MB	.083 vCPU
256MB	.167 vCPU
512MB	.333 vCPU
1024MB	.583 vCPU
2048MB	1 vCPU
4096MB	2 vCPU
8192MB	2 vCPU
Not available	4 vCPU
Not available	8 vCPU

Note: 1 vCPU is equal to 2.4GHz. CPU allocations are an approximation. Actual allocation of CPU clock cycles may vary slightly across function invocations.

By default, the memory allocated for a function is 256MB or 256 MiB depending on the Cloud Run functions product version.

See Cloud Run functions Pricing for information about costs associated with memory and CPU allocations.

Set a memory limit

You can set a function's allocated memory at deployment using the Google Cloud CLI or the Google Cloud console:

gcloud

If you are deploying a function using the gcloud CLI, use the --memory flag:

gcloud functions deploy YOUR_FUNCTION_NAME --no-gen2 --memory=MEMORY_LIMIT ...

Console

To set the allocated memory during function creation in the Google Cloud console:

1. Go to the Cloud Run functions Overview page in the Google Cloud console.
2. Click Create function.
3. Fill in the required fields for your function.
4. Expand the Runtime, build... section at the end of the page and click the Runtime tab.
5. In the Memory allocated field, select an amount of memory.
6. Click Next.
7. Click Deploy.