Package Exports

hsperf

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (hsperf) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

node-hsperf

Parse HotSpot JVM perf data files in Node.js

Installation

npm install hsperf

Usage

const fs = require('fs');
const hsperf = require('hsperf');

// Replace with path to a real hsperfdata file
const path = '/tmp/hsperfdata_root/1234';
let data = fs.readFileSync(path);

// Read and parse hsperfdata
data = hsperf.parse(data)
console.log(data);

Example output

{
  prologue: {
    numEntries: 215,
    ...
  },
  entries: [
    {
      name: 'sun.gc.generation.0.space.1.used',
      value: 123456789
    },
    ...
  ]
}

Acknowledgements

Thanks to @YaSuenag for hsbeat, which helped provide a guide for parsing the hsperfdata format.