Great work, thanks for doing this. Really useful.
1 Like
@kazuhitoyokoi - do you have a simple set of steps to create the nodegen fuction blocks? Or do I have to wade thru that info to create them?
The README.md in node-red-nodegen project has simple steps to create nodegen function nodes as follows.
## Installation
* sudo npm install -g node-red-nodegen
### Create original node from function node
* On Node-RED flow editor, save function node to library with file name (lower-case.js).
* node-red-nodegen ~/.node-red/lib/function/lower-case.js
* cd node-red-contrib-lower-case
* sudo npm link
* cd ~/.node-red
* npm link node-red-contrib-lower-case
* node-red
-> You can use lower-case node on Node-RED flow editor.
You can also create "function node without vm module" using the following steps.
## Installation
* git clone https://github.com/kazuhitoyokoi/node-red-nodegen.git
* cd node-red-nodegen
* git checkout master-functionwithoutvm
* npm install
### Create original node from function node
* On Node-RED flow editor, save function node to library with file name (lower-case.js).
* node bin/node-red-nodegen.js ~/.node-red/lib/function/lower-case.js --name lower-case-wovm
* cd node-red-contrib-lower-case-wovm
* sudo npm link
* cd ~/.node-red
* npm link node-red-contrib-lower-case-wovm
* node-red
-> You can use lower-case-wovm node on Node-RED flow editor.
In the future, Node-RED flow editor will be able to have nodegen UI. Currently there is the design note about the UI.
I've just pushed a fix to git that restores the performance of the Switch node:
| Number of messages | Function Time (ms) | Switch Time (ms) |
|---|---|---|
| 16384 | 1216 | 331 |
| 32768 | 2081 | 600 |
| 65536 | 4125 | 1124 |
| 131072 | 8282 | 2207 |
This fix only applies if the node doesn't try to access context.
I suspect a similar performance regression will have been introduced to the Change node - I'll sort that out next.
3 Likes
Thank you for the optimization. 
I'll use the new version of Node-RED!
