A Caching Model of Operating System Kernel Functionality
   Stanford Cache Kernel, supervisor-mode component of V++ OS; caches system objects (threads, address spaces) to raise performance; microkernel alternative, performance equals normal monolithic OSs, yet gives application-level control of system resources, m
   http://www-dsg.stanford.edu/papers/cachekernel/main.html

BITS
   The Component Based Operating System: based on describing system resources as independent components, lets applications implement their own abstractions, define their own protection schemes, participate in resource management.
   http://www.soi.city.ac.uk/~patty/bits.html

Extensible Operating Systems
   Brief description, and on-site links to descriptions of Choices, Exokernel, GLUnix, VINO, SPIN.
   http://www.cs.unm.edu/~riesen/prop/node26.html

Open Kernel Environment: OKE
   Lets non-root users load native, fully optimized code in kernels. OKE Corral: active network environment, lets 3rd-party code manage code organization at any level of nodes. LEGO-like model from MIT Click router. Description, papers, release page, contact
   http://www.liacs.nl/home/herbertb/projects/oke/

SPIN
   Dynamically extensible, Exokernel-based, provides many core services: scheduler, kernel threads, domains, event dispatcher, security mechanisms, primitive VM operations. Blurs distinction between kernels and applications, which traditionally live in user-
   http://www.cs.washington.edu/research/projects/spin/www/

Using Kernel Extensions to Decrease the Latency of User-Level Communication Primitives
   Suggests solving networking and distributed systems latency via operating system extensibility; University of New Mexico Technical Report.
   http://www.cs.unm.edu/~riesen/prop/