Operating-Systems
5 posts in category “Operating-Systems”.
Virtual Memory and Page Tables: How Modern Systems Manage Memory
2022-05-19A comprehensive exploration of virtual memory, page tables, and address translation. Learn how operating systems provide memory isolation, enable overcommitment, and optimize performance with TLBs and huge pages.
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.
Unikernels: Specializing the OS for a Single Application, from MirageOS to IncludeOS and the Performance-Security Trade-offs
2020-05-26A deep exploration of unikernel architecture — how compiling an application directly into a specialized operating system kernel produces dramatic performance and security benefits while challenging decades of OS design orthodoxy.
Exokernels & Library OS: MIT's Radical Vision, Secure Multiplexing, and the Unikernel Lineage
2020-04-01A deep exploration of exokernel architecture from MIT's Aegis/XOK/ExOS stack through the secure multiplexing problem to the modern unikernel renaissance that vindicated the library OS philosophy.
Microkernel vs Monolithic: The L4 Experience, IPC Optimization, seL4 Verification, and Zircon's Ascent
2020-02-24A deep exploration of microkernel design from L4's high-performance IPC through seL4's formal verification to Zircon's pragmatic reimagining for Fuchsia. Understand why the microkernel-monolithic debate refuses to die.