Definition
Loadable kernel modules (LKMs) are software pieces that can be dynamically loaded into or removed from an operating system kernel while it is running.
They enhance the kernel’s functionality by incorporating or altering device drivers, file systems, and networking protocols.
Advantages of Loadable Kernel Modules
- Dynamic functionality expansion: LKMs enable developers and administrators to add or adjust features without recompiling or rebooting the system.
- Memory and resource optimization: LKMs optimize system resources by loading modules on demand. This reduces system footprint and memory usage, improving performance by removing unused modules.
- Simplified debugging and testing: LKMs enable debugging and testing of specific features or drivers. This allows developers to troubleshoot code in a controlled setting without compromising system stability.