Kernel

• Process Scheduling and Context Switching: How Operating Systems Share the CPU · 2022-05-18

  A deep dive into how operating systems decide which process runs next and how they switch between processes. Understand scheduling algorithms, context switches, and the trade-offs that shape system responsiveness.

• eBPF Internals: The In-Kernel Verifier, Safety Proofs, JIT Compilation to Native Code, Map Types, and XDP/TC Hooks · 2021-05-08

  A deep exploration of eBPF internals — how the Linux kernel verifier proves safety, the JIT compilers that turn BPF bytecode into native instructions, the map infrastructure that enables stateful processing, and the XDP/TC hooks that make programmable networking possible.

• System Calls: The Gateway Between User Space and Kernel · 2021-04-18

  An in-depth exploration of how applications communicate with the operating system kernel through system calls. Learn about the syscall interface, context switching, and how modern OSes balance security with performance.

• Network Sockets and the TCP/IP Stack: How Data Travels Across Networks · 2020-11-08

  A comprehensive exploration of network programming internals, from socket system calls through the TCP/IP protocol stack to the network interface. Understand connection establishment, flow control, and the kernel's role in networking.