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JD Tech
JD Tech
Sep 6, 2022 · Big Data

Flink Streaming Job Tuning Guide: Memory Model, Network Stack, RocksDB, and More

This article presents a detailed guide for optimizing large‑scale Apache Flink streaming jobs on the JD Real‑Time Computing platform, covering TaskManager memory model tuning, network stack configuration, RocksDB state management, checkpoint strategies, and additional performance tips with practical examples and calculations.

Apache FlinkCheckpointPerformance Tuning
0 likes · 22 min read
Flink Streaming Job Tuning Guide: Memory Model, Network Stack, RocksDB, and More
Tencent Cloud Developer
Tencent Cloud Developer
Jul 20, 2022 · Fundamentals

Deep Dive into the TCP Three‑Way Handshake from the Linux Kernel Perspective

The article explains how the Linux kernel implements the TCP three‑way handshake, detailing server listen queue allocation, client connect port selection and SYN transmission, SYN‑ACK processing, state transitions, request‑socket management, full‑connection queue handling, and the final accept call, plus tuning tips.

CONNECTLinux kernelSocket Programming
0 likes · 19 min read
Deep Dive into the TCP Three‑Way Handshake from the Linux Kernel Perspective
Top Architect
Top Architect
Sep 3, 2021 · Fundamentals

Understanding Linux Network Subsystem: Layers, Interrupt Handling, and Driver Initialization

This article explains the layered architecture of the Linux network stack, maps the TCP/IP model to Linux implementation, and details how hardware and soft interrupts, ksoftirqd threads, and NAPI cooperate with driver initialization to process packet reception and transmission.

Driver DevelopmentNAPIinterrupts
0 likes · 23 min read
Understanding Linux Network Subsystem: Layers, Interrupt Handling, and Driver Initialization
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
Efficient Ops
Efficient Ops
May 15, 2017 · Fundamentals

What Really Happens When You Type a URL? A Deep Dive into the Full Stack

This article walks through every step from pressing a key on the keyboard to the browser rendering a web page, covering hardware signaling, kernel interrupt handling, DNS resolution, TCP handshakes, HTTP exchange, and final page display, illustrating how many university‑level concepts intersect in a single URL request.

Computer ArchitectureOperating SystemURL processing
0 likes · 10 min read
What Really Happens When You Type a URL? A Deep Dive into the Full Stack