From PSI signal validation to a cgroup-scoped policy screen
What PSI/swap validation established, why responsiveness measurement changed, and what the active guided-zram screen can still prove.
systemsLinuxPSImemory
Curated from the research vault
Notes
Selected experiment logs, methodology notes, and reading notes from ongoing systems work.
Published notes
Docker Explained — How It Really Works Under the Hood
Docker packages layered filesystems with metadata and uses Linux namespaces, cgroups, and the shared host kernel to run isolated, reproducible environments without full virtual machines.
dockerdevopsarchitecturecloud