Support for google-perftools remote profiling with NodeJS
npm install node-remote-pprofLibrary that implements the google-perftools remote interface as a Express/Connect-compatible router.
``sh`
npm install --save node-remote-pprof
1. Add the /pprof endpoint to your application
`js
const express = require('express');
const pprof = require('node-remote-pprof');
const app = express();
app.use('/pprof', pprof());
app.listen(3000);
`
2. Run the application
`sh`
node --perf-basic-prof .../app.js
The --perf-basic-prof command-line is needed for resolving Javascript symbols dynamically.
3. Use the pprof tool to profile the application`
sh`
pprof --web localhost:3000
Note: Either the original or the go version should work here.
This library is very rough, and only got light testing on mac OS High Sierra and some Linux derivates. Expect bugs and missing features.
By default the application will run with heap profiling disabled, this can be controlled by settingthe HEAPPROFILE` environment variable to the prefix of the heap dumps to create.
Alpine Linux/musl is not supported right now: See https://github.com/gperftools/gperftools/issues/693 for details and further links.
Apache-2.0.