Soft Interrupts

Selected Java Interview Questions

Nov 8, 2024 · Cloud Native

Performance Degradation After Containerization: Analysis and Optimization Strategies

The article examines why applications experience slower performance after being containerized on Kubernetes, presenting benchmark comparisons, analyzing increased soft‑interrupt overhead due to the Calico ipip overlay, and proposing network optimizations such as ipvlan modes and Cilium to restore efficiency.

CiliumContainerizationKubernetes

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Performance Degradation After Containerization: Analysis and Optimization Strategies

Refining Core Development Skills

May 27, 2021 · Fundamentals

Deep Dive into Linux Localhost Network I/O: Kernel-Level Packet Transmission and Reception on 127.0.0.1

This article provides a comprehensive analysis of the Linux kernel's handling of localhost network I/O, detailing how packets destined for 127.0.0.1 bypass physical network interfaces, traverse the routing table, and utilize the loopback virtual device and soft interrupts for efficient intra-machine communication.

Kernel RoutingLoopback InterfaceOS internals

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Deep Dive into Linux Localhost Network I/O: Kernel-Level Packet Transmission and Reception on 127.0.0.1

360 Quality & Efficiency

May 17, 2018 · Operations

CPU Monitoring and IRQ Affinity Tuning for Performance Testing

During performance testing, the article explains how high soft‑interrupt CPU usage can be diagnosed via /proc/interrupts, and demonstrates binding network‑card interrupt queues to individual CPU cores using commands and scripts, resulting in balanced CPU load and reduced interrupt overhead.

CPU monitoringIRQ AffinityLinux

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CPU Monitoring and IRQ Affinity Tuning for Performance Testing