The article argues for revisiting microkernel architectures due to the widespread availability of IOMMUs, which mitigate historical performance overheads. It highlights benefits such as improved security, reliability, and modularity by isolating drivers in userspace.
Background
Microkernels have long been debated as an alternative to monolithic kernels like Linux, primarily hindered by context-switching overhead. Modern hardware features like IOMMUs now allow efficient memory isolation, potentially making microkernels viable again.
- Source
- Lobsters
- Published
- Jul 26, 2026 at 06:13 AM
- Score
- 7.0 / 10