My function uses too much RAM

Reviewed on December 19, 2025

Problem

My function consumes an excessive amount of memory (RAM).

Possible cause

With Sandbox v2, the memory usage of a function is proportional to the number of forked subprocesses.

Solutions

If your application relies on multiple subprocesses that instantiate numerous objects (such as large module imports in Python), we recommend using Sandbox v1.

Refer to the My function runs out of memory (OOM) documentation for other solutions for memory issues.