On: How to write a command line application in Node.js

[jdlshore]

> What is the memory footprint of node? What is the startup cost?

It's fast enough, and low-overhead enough, that I don't notice any overhead when running my Node.js build scripts. And really, that's all that matters.

Out of curiosity, I wrote a little script to test it:

    #!/usr/local/bin/node
    console.log(process.memoryUsage());

And here's the output (memory usage is in bytes):

    jshore$ time ./deleteme.js 
    { rss: 12660736, heapTotal: 4083456, heapUsed: 2131864 }

    real   0m0.055s
    user   0m0.043s
    sys    0m0.011s