DragonFly BSD is an open-source Unix-like operating system that originated as a fork of FreeBSD 4.81. Developed by Matthew Dillon, it was designed with a focus on high performance, multi-processor support, and advanced filesystems. DragonFly BSD is known for its unique features like the HAMMER2 filesystem, which provides instant snapshots, compression, and de-duplication, and its lightweight kernel threads (LWKT) for efficient CPU usage.
The system is structured to take full advantage of modern hardware, particularly Solid State Drives (SSDs), with its “swapcache” feature that boosts performance by caching filesystem data and metadata. DragonFly BSD’s kernel is tailored for symmetric multiprocessing (SMP), allowing it to run concurrently on multiple CPUs without bottlenecks or lock contention.
With its hybrid kernel type and BSD license, DragonFly BSD offers a stable and secure environment for a variety of applications, from servers to workstations, and is a testament to the innovation and adaptability within the BSD community.
One of the best alternatives to Mac OS and Microsoft Windows operating systems.
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