Скачать или смотреть Why Linux gives out fake memory

Dive deep into memory management mechanics in Linux, focusing on understanding virtual vs resident memory sizes. Learn how processes allocate memory and the kernel's role in managing address spaces. This video explains tools like PS and PMAP for monitoring process memory and discusses concepts like overcommit memory and shared object libraries, providing a practical demonstration of the Apache process.

Get Started with Red Hat Enterprise Linux: https://developers.redhat.com/register
Try it for yourself: https://redhat.com/interactive-labs

Tuned Interactive self-paced lab:
https://www.redhat.com/en/interactive...

Excellent article on how to set swappiness with maths to determine pagecache or anon page memory preference (by Chris Down from Meta):
https://chrisdown.name/2018/01/02/in-...

Commands used: free, vmstat, ps, top, swapon, pmap


00:00 Introduction to Memory Management
00:09 Understanding Virtual and Resident Size
01:15 Exploring Process Memory with PMAP
02:15 Shared Libraries and Memory Allocation
04:58 Virtual Memory and Overcommitment
07:00 PMAP Utility and PROC Directory