Has anybody done research to compare resource usage when creating nodes using subflows vs writing the same functionality using a single node using js? I'm wondering if it's possible to estimate the performance improvement—expressed as a percentage—for each Node-RED subflow that is replaced by a cus…

Could be tested by spamming a huge amount of messages, delta time time between first at start and last at finish. Do that for node and subflow individually. I think the overhead for such a simple case would be negligible. The overhead of duplication is perhaps more considerable. I really wish we cou…

[image] ThingsTinkerer: singleton subflow. Funny you should say that since in Erlang-Red - since everything is an Erlang process and everything has a message queue - everything is a singleton. How does this work? Each node becomes a separate process that lives somewhere in the Erlang machine…

In node-red we can pass class instances through messages. Can this be done in Earlang-RED?

[image] AllanOricil: class instances through messages Erlang has no classes but modules. They are stateless collection of functions. Erlang is also functional, so yes, functions can be passed around on messages. Erlang also has transparent process distribution, I can literally build an Erla…

Wow you made unit test interface for that thing!?! Something that node red should copy!

[image] ThingsTinkerer: unit test interface for that thing! Yes and a collection of flows (a bit scrolling on that page) that test or better said verify the basis functionality of the core nodes. So that when I implement Erlang-Red I can verify that its behaviour matches that of Node-RED. For…

Cool! But I would love to have the test environment also, for example shadow copies of flows or otherwise set up test flows in a separate area of node red.

Big blue doesn’t make me blue. It was on GitHub’s list of open science license so it must be ok somewhere on this planet.

Sure test environment is nice but it also requires server changes that I’m not willing to make because I’m busy over at Erlang red. If the community wants it then they can make it or buy my time - there is a sponsor button at GitHub that apparently also works - no one has tested it yet! EDIT: I do…

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Node vs Subflow Node implementation research

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dceejay 10 July 2025 13:58 14

When I was still at IBM the lawyers would never let us sign up to anything that included GPL3 - so may not be as "safe" as you would like.

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Node vs Subflow Node implementation research

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