diat-custom-linux-perf
v1.5.5
Published
Library to replace V8's `--perf-basic-prof` flag, with the ability to toggle creation of Linux `perf` map files during runtime.
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node-linux-perf
Library to replace V8's --perf-basic-prof
flag, with the ability to toggle
creation of Linux perf
map files during runtime.
It's recommended to run Node.js with the --interpreted-frames-native-stack
flag enabled, otherwise Linux perf will not be able to translate the name of
many JavaScript functions.
Build Status
| Version | Status | |-----------------------|--------------------------------------------| | Node.js v10.x | | | Node.js v12.x | | | nodejs/node@master | | | nodejs/node-v8@canary | |
Installation
$ npm install linux-perf
Usage
const linuxPerf = require('linux-perf');
// Generated a /tmp/perf-PID.map file and updates it when necessary
linuxPerf.start();
// **YOUR CODE HERE**
// Stops writing to /tmp/perf-PID.map
linuxPerf.stop();
API
start(): bool
Generates a /tmp/perf-PID.map
file and updates it when necessary (for example,
when new functions are declared). If a /tmp/perf-PID.map
file already exists,
its content will be erased, and a new file will be generated.
Return: true
if the file was generated successfully, false
otherwise.
stop(): bool
Stops writing to /tmp/perf-PID.map
. The content written on the file is
preserved.
Return: true
if it was able to stop writting to the file, false
otherwise.