CentOS Showcase

RPM Copy-on-write
2025-04-07 , Showcase

RPM CoW (Copy-on-Write) leverages filesystem reflink capabilities to perform package installations with minimal I/O overhead.
This significantly reduces disk usage, speeds up deployment, and frees space due to the deduplication.
This method integrates seamlessly with modern filesystems that support reflinks, such as XFS and Btrfs.

I'm Matteo Croce and I work from Italy in the Linux Userspace team at Meta.
In the past I've been a Linux kernel developer, now I'm focusing on linux userspace software, like systemd and RPM.