Understanding Linux Memory Allocation: Fast Path vs. Slow Path in the Source Code

This article dissects the Linux kernel's page allocation mechanisms, explaining how alloc_pages() follows a fast‑path using low watermarks and falls back to a slow‑path that triggers kswapd, direct reclaim, and compaction, while also detailing the corresponding page‑freeing functions and their internal data structures.

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Understanding Linux Memory Allocation: Fast Path vs. Slow Path in the Source Code

AI Cyberspace

Jun 16, 2024 · Operations

Inside Intel HDSLB: Architecture and Advanced Load‑Balancing Features

This article walks through Intel's high‑density scalable load balancer (HDSLB), detailing its layered software architecture, advanced elephant‑flow handling, fast/slow‑path separation, packet‑forwarding optimizations, and provides a deep code analysis of its configuration, initialization, and data‑plane job execution.

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Inside Intel HDSLB: Architecture and Advanced Load‑Balancing Features