DragonFly BSD is a total rewrite of BSD. It has replaced nearly all of the core threading, process, interrupt, and network infrastructure with native subsystems. It has its own MP-friendly slab all... More

DragonFly BSD is a total rewrite of BSD. It has replaced nearly all of the core threading, process, interrupt, and network infrastructure with native subsystems. It has its own MP-friendly slab allocator, a Light Weight Kernel Threading (LWKT) system that is separate from the dynamic userland scheduler, a fine-grained system timer abstraction for kernel use, a fully integrated light weight messaging system, and a core IPI (Inter Processor Interrupts) messaging system for inter-processor communications.  [edit]  Less