https://github.com/davidmarkclements/0x
npm install -g 0x
0x my-app.js
0x -o my-app.js
0x -P 'autocannon localhost:$PORT' my-app.js
0x -- /path/to/node my-app.js
0x -- node --zero-fill-buffers my-app.js
0x examples/rest-api
npm run stress-rest-example
0x -P 'autocannon localhost:$PORT' app.js
node --stack-size=8024 $(which 0x) my-app.js
const zeroEks = require('0x');
const path = require('path')
async function capture () {
const opts = {
argv: [path.join(__dirname, 'my-app.js'), '--my-flag', '"value for my flag"'],
workingDir: __dirname
}
try {
const file = await zeroEks(opts)
console.log(`flamegraph in ${file}`)
} catch (e) {
console.error(e)
}
}
capture()
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