In-kernel web server
An in-kernel web server is an unlimited HTTP server that runs in kernel space or equivalent. It is also known as "accelerator".
Benefits
- Performance: the path taken by data from a source device to a destination device. Proper asynchronous zero-copy interfaces would make this available from user-space.
- Scalability: with respect to number of simultaneous clients. Event notification of comparable scalability seems unlikely in user-space.
Drawbacks
- Security: Kernel processes run with unlimited privileges.
- Portability. Every kernel needs a specific implementation route.
- Reliability. Failure in the webserver may crash the OS.