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thlorenz/deoptigate

⏱️ Investigates v8/Node.js function deoptimizations.

JavaScript

1,170

90 commits

updated Dec 12, 2022

nodesource.github.io/deoptigate-examples/xml2js/01_start/?selectedFileIdx=31&selectedLocation=157&includeAllSeverities=false&highlightCode=true&selectedTabIdx=1&selectedSummaryTabIdx=1

See the code

README

deoptigate

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

Project health

Overall

2.9/10

Maintained

0/10

Code review

1/10
OpenSSF Scorecard

npm

deoptigate

Latest release

0.7.1 · Dec 12, 2022

Releases this year

0

Significant stargazers

(top 24 of 68)

Mathias Bynens

13,084 followers · starred Aug 2018

Luke Edwards

5,087 followers · starred Sep 2018

Mateusz Burzyński

2,324 followers · starred Nov 2019

Addy Osmani

54,184 followers · starred Sep 2018

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thlorenz/deoptigate

⏱️ Investigates v8/Node.js function deoptimizations.

JavaScript

1,170

90 commits

updated Dec 12, 2022

nodesource.github.io/deoptigate-examples/xml2js/01_start/?selectedFileIdx=31&selectedLocation=157&includeAllSeverities=false&highlightCode=true&selectedTabIdx=1&selectedSummaryTabIdx=1

See the code

README

deoptigate

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

Project health

Overall

2.9/10

Maintained

0/10

Code review

1/10
OpenSSF Scorecard

npm

deoptigate

Latest release

0.7.1 · Dec 12, 2022

Releases this year

0

Significant stargazers

(top 24 of 68)

Mathias Bynens

13,084 followers · starred Aug 2018

Luke Edwards

5,087 followers · starred Sep 2018

Mateusz Burzyński

2,324 followers · starred Nov 2019

Addy Osmani

54,184 followers · starred Sep 2018

Similar repos

thlorenz/v8-perf

⏱️ Notes and resources related to v8 and thus Node.js performance

2,282

same org

thlorenz/turbolizer

Turbolizer tool from the v8 repository with added support to preload a profile

182

same org

andrewiggins/v8-deopt-viewer

View deoptimizations of your JavaScript in V8

280

mourner/flamebearer

A JavaScript CPU trace analysis tool for agents and humans

1,660

mapbox/flamebearer

A JavaScript CPU trace analysis tool for agents and humans

1,660

clinicjs/node-clinic

Clinic.js diagnoses your Node.js performance issues

5,953

davidmarkclements/v8-perf

Exploring v8 performance characteristics in Node across v8 versions 5.1, 5.8, 5.9, 6.0 and 6.1

279

RafaelGSS/bench-node

A powerful Node.js benchmark library

192