In many places in the web, you will see: <blockquote> What is the memory limit on a node process? </blockquote> and the answer: <blockquote> Currently, by default V8 has a memory limit of 512mb on 32-bit systems, and 1gb on 64-bit systems. The limit can be raised by setting --max-old-space-size to a maximum of ~1gb (32-bit) and ~1.7gb (64-bit), but it is recommended that you split your single process into several workers if you are hitting memory limits. </blockquote> Can somebody confirm this is the case as Node.js seems to update frequently? And more importantly, will it be the case in the near future? I want to write JavaScript code which might have to deal with 4gb of javascript objects (and speed might not be an issue). If I can't do it in Node, I will end up doing in java (on a 64bit machine) but I would rather not.

Starting nodejs app with a heap memory of 8 GB <pre class="prettyprint"><code>node --max-old-space-size=8192 app.js </code></pre> See node command line options documentation or run: <pre class="prettyprint"><code>node --help --v8-options </code></pre>

memory limit in Node.js (and chrome V8)

Q: How much memory can Nodejs use?

In Node < 12 , it sets a limit of 1.5 GB for long-lived objects by default. If this exceeds the memory available to your dyno, Node could allow your application to start paging memory to disk.

Q: How do I increase the memory limit in Node JS?

Solution. The solution to run your Node. js app with increased memory is to start the process with an additional V8 flag: --max-old-space-size . You need to append your desired memory size in megabytes.

Q: What is the limit of browser memory?

Per-tab memory limits. Browser limitations on per-tab memory are not well documented. The 64-bit Chrome browsers are known to have a 4Gb per-tab memory limit. iOS devices have more stringent limitations: empirical evidence indicates that the iPhone 6 is limited to 645Mb, the iPhone 6s to 1Gb, and the iPhone 7 to 2Gb.

Q: What is the default max old space size for Node?

Expanding Memory Allocation Limits This sets the max limit to 8GB.

Tags:

memory-management

node.js

In many places in the web, you will see:

What is the memory limit on a node process?

and the answer:

Currently, by default V8 has a memory limit of 512mb on 32-bit systems, and 1gb on 64-bit systems. The limit can be raised by setting --max-old-space-size to a maximum of ~1gb (32-bit) and ~1.7gb (64-bit), but it is recommended that you split your single process into several workers if you are hitting memory limits.

Can somebody confirm this is the case as Node.js seems to update frequently?

And more importantly, will it be the case in the near future?

I want to write JavaScript code which might have to deal with 4gb of javascript objects (and speed might not be an issue).

If I can't do it in Node, I will end up doing in java (on a 64bit machine) but I would rather not.

956

asked Aug 25 '11 16:08

chacko

2 Answers

This has been a big concern for some using Node.js, and there are good news. The new memory limit for V8 is now unknown (not tested) for 64bit and raised to as much as 32bit address space allows in 32bit environments.

Read more here: http://code.google.com/p/v8/issues/detail?id=847

104

answered Oct 20 '22 04:10

Sampsa Suoninen

Starting nodejs app with a heap memory of 8 GB

node --max-old-space-size=8192 app.js

See node command line options documentation or run:

node --help --v8-options

answered Oct 20 '22 04:10

Piyush Katariya

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