Speeding up "bundle install" by 2x
ruby on rails
Before
bundle install --redownload
# 115.20s user 31.70s system 183% cpu 1:20.08 total
After
MAKE="make --jobs 8" bundle install --redownload
# 142.61s user 33.69s system 438% cpu 40.228 total
With a simple tweak, we halved the time needed to install the gems, which is very helpful for CI!
Why does this work
The MAKE environment variable must be passed in for the --jobs argument to work because it allows parallelization across CPU cores during the bundle install process.
The rake-compiler library, commonly used by native extensions, leverages make with the --jobs option to achieve true parallelism.
By setting the MAKE environment variable, you can significantly improve bundle install performance, especially if your Gemfile contains numerous native extensions and you’re using MRI with multiple CPU cores available.
Full explanation from this original blogpost I referenced - One Weird Trick That Will Speed Up Your Bundle Install
A little about what I do at NodeFlair…
The world today runs on code written by developers that solve the world’s problems and impact lives.
Now, imagine a world where developers get to code at a place where they find purpose in their work. This meaning could translate into drive that pushes boundaries to solve more of the world’s problems.
That’s why at NodeFlair, we make it our mission to improve the world by empowering developers to code() at where they love.
