Introduction to Virtual Memory

Let's dive into the world of virtual memory, which is a common memory management technique used in computer's operating system. It sits at the boundary of software and hardware, and it's the main reason why we can play video games and listen to the music at the same time without worrying about spotify crashing our Diablo 4.

Key Topics discussed in the video

Understand the problems
Understand the core principles behind virtual memory and how it solves these problems
Understand how virtual memory is implemented
Discuss various optimization techniques

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Timecodes
00:00 Intro
00:19 Problem: Not Enough Memory
01:17 Problem: Memory Fragmentation
02:20 Problem: Security
03:10 Key Problem
04:42 Solution: Not Enough Memory
05:58 Solution: Memory Fragmentation
06:32 Solution: Security
07:30 Virtual Memory Implementation
09:49 Page Table
10:40 Example: Address Translation
11:54 Page Faults
13:28 Recap
14:18 Translation Lookaside Buffer (TLB)
15:46 Example: Address Translation with TLB
16:57 MultiLevel Page Tables
18:48 Example: Address Translation with MultiLevel Page Tables
19:58 Outro