a14c789a4c
* fix: performance problem in crashReporter.start() on macOS
This change reduces the duration of crashReporter.start() on Intel macOS
from 622 milliseconds to 257 milliseconds!
Backports https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3641386
posix: Replace DoubleForkAndExec() with ForkAndSpawn()
The DoubleForkAndExec() function was taking over 622 milliseconds to run
on macOS 11 (BigSur) on Intel i5-1038NG7. I did some debugging by adding
some custom traces and found that the fork() syscall is the bottleneck
here, i.e., the first fork() takes around 359 milliseconds and the
nested fork() takes around 263 milliseconds. Replacing the nested fork()
and exec() with posix_spawn() reduces the time consumption to 257
milliseconds!
See https://github.com/libuv/libuv/pull/3064 to know why fork() is so
slow on macOS and why posix_spawn() is a better replacement.
Another point to note is that even base::LaunchProcess() from Chromium
calls posix_spawnp() on macOS -
8f8d82dea0:base/process/launch_mac.cc;l=295-296
Change-Id: I25c6ee9629a1ae5d0c32b361b56a1ce0b4b0fd26
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3641386
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Fixes: https://github.com/electron/electron/issues/34321
Signed-off-by: Darshan Sen <raisinten@gmail.com>
* Update .patches
* chore: update patches
* Update posix_replace_doubleforkandexec_with_forkandspawn.patch
* chore: update patches
Co-authored-by: Darshan Sen <raisinten@gmail.com>
Co-authored-by: Cheng Zhao <zcbenz@gmail.com>
Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
📝 Available Translations: 🇨🇳 🇧🇷 🇪🇸 🇯🇵 🇷🇺 🇫🇷 🇺🇸 🇩🇪. View these docs in other languages at electron/i18n.
The Electron framework lets you write cross-platform desktop applications using JavaScript, HTML and CSS. It is based on Node.js and Chromium and is used by the Atom editor and many other apps.
Follow @ElectronJS on Twitter for important announcements.
This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to coc@electronjs.org.
Installation
To install prebuilt Electron binaries, use npm.
The preferred method is to install Electron as a development dependency in your
app:
npm install electron --save-dev
For more installation options and troubleshooting tips, see installation. For info on how to manage Electron versions in your apps, see Electron versioning.
Quick start & Electron Fiddle
Use Electron Fiddle
to build, run, and package small Electron experiments, to see code examples for all of Electron's APIs, and
to try out different versions of Electron. It's designed to make the start of your journey with
Electron easier.
Alternatively, clone and run the electron/electron-quick-start repository to see a minimal Electron app in action:
git clone https://github.com/electron/electron-quick-start
cd electron-quick-start
npm install
npm start
Resources for learning Electron
- electronjs.org/docs - All of Electron's documentation
- electron/fiddle - A tool to build, run, and package small Electron experiments
- electron/electron-quick-start - A very basic starter Electron app
- electronjs.org/community#boilerplates - Sample starter apps created by the community
- electron/simple-samples - Small applications with ideas for taking them further
- electron/electron-api-demos - An Electron app that teaches you how to use Electron
Programmatic usage
Most people use Electron from the command line, but if you require electron inside
your Node app (not your Electron app) it will return the file path to the
binary. Use this to spawn Electron from Node scripts:
const electron = require('electron')
const proc = require('child_process')
// will print something similar to /Users/maf/.../Electron
console.log(electron)
// spawn Electron
const child = proc.spawn(electron)
Mirrors
Documentation Translations
Find documentation translations in electron/i18n.
Contributing
If you are interested in reporting/fixing issues and contributing directly to the code base, please see CONTRIBUTING.md for more information on what we're looking for and how to get started.
Community
Info on reporting bugs, getting help, finding third-party tools and sample apps, and more can be found in the support document.
License
When using the Electron or other GitHub logos, be sure to follow the GitHub logo guidelines.