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#linux

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2 articles

Bypassing the Kernel: User-Space Networking for Sub-Microsecond Performance

Bypassing the Kernel For high-frequency trading (HFT) and ultra-low-latency messaging, even the Linux kernel's networking stack is too slow. 1. The Context Switch Cost Every time a packet moves from the NIC (Network Inte…

Apr 20, 20263 min read

Deep DivePerformance & Optimization Mastery

#networking#dpdk#linux

DatabasesAdvanced

Inside the Linux Page Cache: The Invisible Database Accelerator

Inside the Linux Page Cache When your database (PostgreSQL, MongoDB, etc.) reads a row from disk, it doesn't just read the bytes and forget them. The Linux kernel intercepts the request and caches the data in a region of…

Apr 20, 20262 min read

Deep DiveBackend Systems Mastery

#linux#kernel#databases