VAX/VMS Memory System
DEC's clean VM manager — 512B pages, segmented address space, no reference bit, and segmented FIFO with second-chance lists.
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Making invisible systems feel intuitive
Computer systems topics like operating systems, memory, threads, scheduling, caches, and networking are often taught through dense lectures and abstract diagrams. These ideas are easier to understand when you can see what is happening step by step.
Just know that my long-term vision is that I'm building a tool in this space (I'm shooting for the stars with the focus/scope/customers/context, will reveal details when I'm ready), but for now, the current focus is my personal learning journey. This is where I document what I'm learning, create visual notes, and gradually build interactive explanations that make invisible systems feel more intuitive.
Topics I'm exploring
Operating SystemsMemoryThreadsSchedulingCachesNetworking
Latest Scribbles
Daily uploads — text, images, or audio
Replacement Policies Under Workloads
Hit rate vs cache size — no-locality, 80-20, looping sequential, and clock. OPT wins; LRU tanks on loops.
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Page Replacement Policies
Memory pressure means eviction — main memory as a cache, AMAT, miss types, and Belady / FIFO / random / LRU / MRU.
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