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Page Reclaim

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Deepin Linux

Jun 6, 2024 · Fundamentals

Linux Page Reclaim Mechanism and PFRA Design Overview

This article explains Linux's page reclamation process, describing how the kernel recovers memory under pressure using PFRA, LRU algorithms, direct reclaim, compaction, and OOM handling, and provides detailed source code analysis of the involved kernel functions.

KernelLRUPFRA

0 likes · 54 min read

Linux Page Reclaim Mechanism and PFRA Design Overview

Deepin Linux

Dec 9, 2023 · Fundamentals

Linux Page Reclaim Mechanism and Memory Compaction: Detailed Source Code Analysis

This article explains the Linux page‑reclaim mechanism, its goals, common techniques, the allocation paths, LRU data structures, and provides an in‑depth walkthrough of the kernel source code for slow‑path reclaim, direct reclaim, and memory compaction, including all relevant functions and code snippets.

CompactionKernelPage Reclaim

0 likes · 80 min read

Linux Page Reclaim Mechanism and Memory Compaction: Detailed Source Code Analysis