How the Linux Page Reclaim and OOM Killer Work: LRU Lists, Watermarks, and Why the System Kills Processes
A process that calls malloc for a multi-gigabyte buffer under memory pressure does not always receive the pages. The kernel may already be s...
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How the Linux Page Reclaim and OOM Killer Work: LRU Lists, Watermarks, and Why the System Kills Processes
A process that calls malloc for a multi-gigabyte buffer under memory pressure does not always receive the pages. The kernel may already be s...
Sarthak Bystander
27 Oct, 2026
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How the Linux Network Transmit Path Works: sk_buffs, qdiscs, and Why send() Returns Before the Packet Leaves
Draft placeholder for the full transmit path article. Full content will be updated.
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How the Linux Network Receive Path Works: NAPI Polling, sk_buffs, Softirqs, and Why the Hard IRQ Never Copies the Payload
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How Spectre Works: Speculative Execution, Branch Predictors, and Cache Side Channels
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How Linux Namespaces and cgroups Work: Isolation, Resource Limits, and Why a Container Is Not a Virtual Machine
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