mincore

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Jul 18, 2019 · Fundamentals

Analyzing Memory-Mapped File Memory Usage and Monitoring in Linux

This article explains how memory-mapped files are used in a search engine, describes the underlying Linux mechanisms such as page cache, multi-level page tables and radix trees, and presents practical methods—including mincore, /proc smaps, pagemap and system commands—to analyze and monitor their memory consumption at both kernel and process levels.