Resource control aims to control compute resource distribution to improve reliability and utilization of a system. The facebook kernel and container teams have been intensively researching and implementing mechanisms and methods to advance resource control. resctl-demo demonstrates and documents various aspects of resource control using self-contained workloads in guided scenarios.

Getting Started

Comprehensive resource control has many requirements, some of which can be difficult to configure on an existing system. resctl-demo provides premade images to help getting started. Visit the following page for details:

https://facebookmicrosites.github.io/resctl-demo-website

Discussions

For discussions around resctl-demo and resource control in general:

https://groups.google.com/g/resctl-demo

Requirements

The basic building blocks are provided by the Linux kernel's cgroup2 and other resource related features. On top, usage and configuration methods combined with user-space helpers such as oomd and sideloader implement resource isolation to achieve workload protection and stacking.

• Linux kernel >= v5.10

• cgroup2

• btrfs on non-composite storage device (sda or nvme0n1, not md or dm)

• Swap file on btrfs at least as large as 1/3 of physical memory

• systemd

• oomd

• python3, findmnt, dd, fio, stdbuf, gcc, ld, make, bison, flex, pkg-config, stress, libssl, libelf

Building

$ cargo build --release

Installing resctl-demo

$ sudo ./install.sh /usr/local/bin

Running resctl-demo

$ sudo systemd-run --scope --slice hostcritical.slice --unit resctl-demo /usr/local/bin/resctl-demo

License

resctl-demo is apache-2.0 licensed, as found in the LICENSE file.