#Kernel
4 posts in tag “Kernel”.
Process Scheduling and Context Switching: How Operating Systems Share the CPU
2022-05-18A 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
2021-05-08A 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
2021-04-18An 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
2020-11-08A 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.