What is a Kernel? | Definition from TechTarget

When kernel debugging or tracing produces massive amounts of data, printk is not enough. Linux provides relay interface support (the relay subsystem) to efficiently move large volumes of information from kernel space to user space. Instead of logging line-by-line, relay uses high-throughput buffers (often per-CPU) so the kernel can write trace data with minimal overhead, while user-space tools can read it efficiently through exposed interfaces. Think of relay as a fast “data pipeline” from the k

What is Linux? Understanding the Kernel, User Space How OS Protects Your System | Simply Byte | Simply Byte

User mode vs. kernel mode: OSes explained | TechTarget