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Tencent Architect
Tencent Architect
May 16, 2023 · Fundamentals

Optimizing Network Latency in TencentOS: Kernel SoftIRQ and ksoftirqd Tuning

This article details a systematic investigation and multi‑stage optimization of TencentOS network latency, uncovering kernel soft‑interrupt bottlenecks, proposing and upstreaming patches to net_rx_action, RPS handling, and ksoftirqd scheduling, ultimately reducing handshake failures by over 80% while sharing practical insights for Linux kernel developers.

Linux kernelNetwork PerformanceSoftIRQ
0 likes · 15 min read
Optimizing Network Latency in TencentOS: Kernel SoftIRQ and ksoftirqd Tuning
Refining Core Development Skills
Refining Core Development Skills
May 12, 2021 · Fundamentals

Linux Network Packet Sending Process: Deep Dive into Kernel Implementation

This comprehensive article provides an in-depth analysis of how Linux kernel sends network packets, covering the complete process from user-space send() call through protocol stack processing to hardware transmission, with detailed source code examination and performance considerations.

DMALinux kernelSoftIRQ
0 likes · 28 min read
Linux Network Packet Sending Process: Deep Dive into Kernel Implementation