Ensure that the memory usage of each process in Node.js is restricted to under 300MB

We execute tests in different instances and some of our test suites consist of more than 20 files. Is there a way to restrict the memory usage of a Node.js process to less than 300MB instead of allowing it to grow? If we don't set any limits, each process could consume up to 20 times 500MB, totaling 10GB, which is excessive.

Although there are numerous resources online that explain how to increase memory allocation, I am unable to locate information on how to cap the memory usage for each individual process.

Currently, we utilize the core child_process module to spawn child processes and it seems like we require a specific flag or parameter to specify a maximum memory threshold for these child processes.

node.jsmemoryprocess

Answer №1

Here are some valuable resources:

Tips on reducing memory usage in Node.js with V8 garbage collector

Discussion on optimizing memory allocation in Node.js

Insights into how Node.js handles memory allocation

Consider these options:

–nouse-idle-notification

–expose-gc + utilize gc() function in your code.

–max-old-space-size

–max-new-space-size

--max-semi-space-size

To optimize memory usage, utilize algorithms that consume less memory and make the code more garbage collector friendly. Using native C++ modules can also help, but ensure to thoroughly check for memory leaks and errors using tools like valgrind.

You can also implement quotes from the operating system to terminate processes that exceed certain memory limits.

I understand that this answer may lack detailed explanations due to my limited knowledge, but it serves as a starting point for further exploration.

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