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Investigates v8/Node.js function deoptimizations.
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Latest commit 26d2912 Jun 22, 2019

README.md

deoptigate

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deoptigate app.js

xml2js

What Performance Experts Say About Deoptigate

Jason Miller aka @_developit, creator of preact. John-David Dalton aka @jdalton, creator of lodash.
developit jdalton

Blogposts about Deoptigate

Why the New V8 is so Damn Fast damn-fast Tracking Down and Fixing Performance Bottlenecks with N|Solid and Deoptigate damn-fast

Installation

npm install -g deoptigate

Usage

Deoptigate your App in one Step

deoptigate app.js

Override Node.js executable and/or pass it custom arguments

deoptigate -- /bin/mynode app.js
deoptigate -- node --allow-natives-syntax app.js

Deoptigate existing *-v8.log

Simply run deoptigate from the directory that contains the log file(s).

License

MIT

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