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TeLOS is a new, universal Linux distribution, a carefully customized derivative of Debian bullseye / sid with KDE Plasma Desktop Environment featuring an unbiased selection of useful applications and services. You may find TeLOS Linux to be snappy, lightweight, ready for work or fun straight out of the box and easily configurable. This Operating System is freely distributed and honors free, open source software development. Nevertheless, some non-free proprietary packages are included to...
...One of its defining characteristics is its deterministic behavior and very small memory footprint, enabling it to run on systems with extremely limited resources. Unlike Linux, tilck intentionally avoids complexity and large-scale features, focusing instead on clarity, robustness, and ease of understanding. It includes its own bootloader and supports integration with existing ones like GRUB, making it flexible for experimentation.
U-tube is a dynamic memory management tool for Xen virtualized envi
U-tube monitors the memoryusage of each VM to detect its memory pressure, and periodically adjusts its memory allocation via memory hotplug. It is implemented as a loadable device driver to coordinate guest OS’ MMU with underlying hypervisor. In contrast to the popular ballooning mechanism, memory hotplug can dynamically expand a guest OS’s physical memory space beyond its maximum configured at booting time.
Ivmuk-OS is small RTOS for microcontrollers with low resources. Microchip's PIC16F877A MCU uses about 70 bytes of RAM and 800 bytes Flash. Memoryusage depends on number of tasks and messages defined. This should create competition to Salvo OS some day.
WatchOut is a Linux system resource monitoring system. It shows CPU info/usage, memory info/usage, process info, etc. It provides a graphical user interface (GUI) for a user.
ftRTOS is a tiny realtime kernel for microcontrollers focused on minimal RAM usage. Fixed priority scheduling, preemptive or cooperative multitasking, no dynamic task and memory management, all objects are defined at compile time.
After reaching certain threshold of resource usage, patched Linux kernel satisfies or denies further requests randomly. This can be creatively used to annoy users or crash-test applications when memory or diskspace requests are denied at unexpected time.