GameMode is a daemon and library for Linux that allows games to request a set of optimisations be temporarily applied to the host OS and/or a game process. GameMode was designed primarily as a stop-gap solution to problems with the Intel and AMD CPU powersave or ondemand governors, but is now host to a range of optimisation features and configurations, including CPU governor, I/O priority, process niceness, kernel scheduler, screensaver inhibiting, GPU performance mode, and custom scripts.

libnvme provides type definitions for NVMe specification structures, enumerations, and bit fields, helper functions to construct, dispatch, and decode commands and payloads, and utilities to connect, scan, and manage nvme devices on a Linux system.

Iproute2 is a collection of utilities for controlling TCP/IP networking and traffic with the Linux kernel. The most important of these are ip, which configures IPv4 and IPv6, and tc for traffic control.

Most network configuration manuals still refer to ifconfig and route as the primary network configuration tools, but ifconfig is known to behave inadequately in modern network environments, and both should be deprecated.

inputattach dispatches input events from several device types and interfaces and translates so that the X server can use them.

This simple tool injects fake MCEs into a running Linux kernel, to debug or test the kernel's EDAC-handling code specific to x86 and x86_64 platforms.

Real MCEs are internal CPU errors. Handling them correctly can be important to system stability and even prevent physical damage. In contrast, simulated MCEs produced by mce-inject are purely synthetic: injection happens only at the software level, inside the kernel, and is not visible to the platform hardware or firmware.

A convenient feature of mce-inject is that the input language used to describe MCEs is similar to the format used in Linux panic messages, with a few extensions. In general, you should be able to pipe in any logged MCE panic to simulate that same MCE.

The target kernel must have the CONFIG_X86_MCE_INJECT option enabled and the mce-inject module loaded if it exists.

lshw (Hardware Lister) is a small tool to provide detailed information on the hardware configuration of the machine. It can report exact memory configuration, firmware version, mainboard configuration, CPU version and speed, cache configuration, bus speed, and more on DMI-capable x86 or EFI (IA-64) systems and on some PowerPC machines (PowerMac G4 is known to work).

nftables is the project that aims to replace the existing ip,ip6,arp,ebtables framework. Basically, this project provides a new packet filtering framework, a new userspace utility and also a compatibility layer for ip,ip6tables. nftables is built upon the building blocks of the Netfilter infrastructure such as the existing hooks, the connection tracking system, the userspace queueing component and the logging subsystem.

Linux kernel patches and device-trees used for the MNT Reform systems

The kernel Linux's frame buffers provide a simple interface to different kinds of graphic displays. The fbset utility can query and change various device settings such as depth, virtual resolution, and timing parameters.

Headers of the Linux-Libre kernel.

Aumix adjusts an audio mixer from X, the console, a terminal, the command line or a script.

Dwarves is a set of tools that use the debugging information inserted in ELF binaries by compilers such as GCC, used by well known debuggers such as GDB.

Utilities in the Dwarves suite include pahole, that can be used to find alignment holes in structures and classes in languages such as C, C++, but not limited to these. These tools can also be used to encode and read the BTF type information format used with the kernel Linux bpf syscall.

The codiff command can be used to compare the effects changes in source code generate on the resulting binaries.

The pfunct command can be used to find all sorts of information about functions, inlines, decisions made by the compiler about inlining, etc.

The pahole command can be used to use all this type information to pretty print raw data according to command line directions.

Headers can have its data format described from debugging info and offsets from it can be used to further format a number of records.

Finally, the btfdiff command can be used to compare the output of pahole from BTF and DWARF, to make sure they produce the same results.

evtest is a tool to print evdev kernel events. It reads directly from the kernel device and prints a device description and the events with the value and the symbolic name.

GNU Linux-Libre is a free (as in freedom) variant of the Linux kernel. It has been modified to remove all non-free binary blobs.

The rasdaemon daemon monitors platform RAS reports from Linux kernel trace events. These trace events are logged in /sys/kernel/debug/tracing and reported through standard log mechanisms like syslog.

RadeonTop monitors resource consumption on supported AMD Radeon Graphics Processing Units (GPUs), either in real time as bar graphs on a terminal or saved to a file for further processing. It measures both the activity of the GPU as a whole, which is also accurate during OpenCL computations, as well as separate component statistics that are only meaningful under OpenGL graphics workloads.

A *Free* project to implement OSF's RFC 86.0. Pluggable authentication modules are small shared object files that can be used through the PAM API to perform tasks, like authenticating a user at login. Local and dynamic reconfiguration are its key features.

Thinkfan is a simple fan control program. It reads temperatures, checks them against configured limits and switches to appropriate (also pre-configured) fan level. It requires a working thinkpad_acpi or any other hwmon driver that enables temperature reading and fan control from userspace.

LIRC allows computers to send and receive IR signals of many commonly used remote controls. The most important part of LIRC is the lircd daemon that decodes IR signals received by the device drivers. The second daemon program lircmd translates IR signals to mouse movements. The user space applications allow you to control your computer with a remote control: you can send X events to applications, start programs and much more on just one button press.

This package provides a Common Lisp assertion system with minimal dependencies on DISSECT.

Stefil is a simple test framework for Common Lisp, with a focus on interactive development.

This small library provides a way to replace the actual implementation of either regular or generic functions with mocks.

NST is a unit/regression testing system for Common Lisp.

RT provides a framework for writing regression test suites.