Behind The Scenes of Bun Install

This blog post explores how Bun, a package manager, achieves significantly faster installation times by addressing modern performance bottlenecks. Bun minimizes system calls, caches package manifests as binary files, and optimizes tarball extraction. It uses a cache-friendly data layout and leverages OS-level copy-on-write and full-core parallelism to further enhance performance. These optimizations result in Bun installing packages up to 25 times faster than traditional package managers.