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Tencent Architect
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Tencent Architect

We share technical insights on storage, computing, and access, and explore industry-leading product technologies together.

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Recent Articles

Latest from Tencent Architect

36 recent articles
Tencent Architect
Tencent Architect
Dec 4, 2024 · Fundamentals

How AutoRec Cuts Live‑Streaming Stalls by Over 11% with Smarter Packet Recovery

The paper “Toward Timeliness‑Enhanced Loss Recovery for Large‑Scale Live Streaming” introduces AutoRec, an on‑off‑mode‑aware packet‑loss recovery mechanism implemented on QUIC that reduces average stall frequency by 11.4% and duration by 5.2% without client‑side changes, and validates its effectiveness in both test‑bed and real‑world CDN deployments.

AutoRecCDNQUIC
0 likes · 12 min read
How AutoRec Cuts Live‑Streaming Stalls by Over 11% with Smarter Packet Recovery
Tencent Architect
Tencent Architect
Oct 25, 2024 · Artificial Intelligence

How Tencent’s TVQA‑C Algorithm Won the ECCV 2024 Video Quality Challenge

Tencent’s TVQA‑C video quality assessment algorithm clinched first place in the ECCV 2024 AIM Workshop compression video quality track, showcasing a novel model architecture, group‑aware training strategy, and specialized loss functions that will soon power Tencent Cloud’s media processing services.

AIDeep LearningECCV 2024
0 likes · 10 min read
How Tencent’s TVQA‑C Algorithm Won the ECCV 2024 Video Quality Challenge
Tencent Architect
Tencent Architect
Jun 24, 2024 · Operations

Root Cause Analysis of Linux Kernel Hard Lockup on CPU 51

This article walks through a real Linux kernel hard lockup case, explaining what hard lockup is, analyzing stack traces and register values, identifying a spinlock contention on a per‑CPU runqueue, and showing how an inappropriate GFP flag caused interrupts to be enabled at the wrong time, leading to a deadlock and the eventual fix.

DebuggingKernelLinux
0 likes · 17 min read
Root Cause Analysis of Linux Kernel Hard Lockup on CPU 51
Tencent Architect
Tencent Architect
May 14, 2024 · Fundamentals

Unlocking C++ Object Memory Layout: From Basics to Inheritance and ASLR

This article walks through C++ object memory layout using concrete examples, covering basic data members, methods, private and static members, inheritance (with and without virtual functions), compiler optimizations, and address‑space layout randomization, all demonstrated with GDB inspections and code snippets.

ASLRCInheritance
0 likes · 22 min read
Unlocking C++ Object Memory Layout: From Basics to Inheritance and ASLR
Tencent Architect
Tencent Architect
Mar 27, 2024 · Operations

Why Does TCP Send RST? Deep Dive into Causes and Debugging Techniques

This article explains the fundamentals of TCP RST packets, distinguishes active and passive resets, outlines common kernel scenarios that generate them, and provides practical debugging methods using tcpdump, bpftrace, and source‑code analysis to resolve real‑world network incidents.

BPFDebuggingKernel
0 likes · 20 min read
Why Does TCP Send RST? Deep Dive into Causes and Debugging Techniques
Tencent Architect
Tencent Architect
Jan 23, 2024 · Fundamentals

XFS Deep Dive: Layout, Inode Management, and Read/Write Operations

This article analyzes the XFS filesystem implementation in the Linux kernel, covering its on‑disk layout, superblock and allocation‑group structures, inode and free‑space B+ trees, operation sets (iops, fops, aops), file creation, write and read paths, logging, block layer interactions, and useful XFS utilities.

FilesystemKernelXFS
0 likes · 12 min read
XFS Deep Dive: Layout, Inode Management, and Read/Write Operations
Tencent Architect
Tencent Architect
Dec 28, 2023 · Cloud Computing

How Tencent’s TGW Architecture Revolutionizes Public Cloud Load Balancing

This article provides an in‑depth technical overview of Tencent Gateway (TGW), detailing its evolution from TGW 1.0 to 2.0, the introduction of Region EIP, the redesign of public CLB, the Shanhai architecture, and future hardware‑offload directions for high‑performance cloud networking.

CLBHardware offloadPublic Cloud Load Balancing
0 likes · 22 min read
How Tencent’s TGW Architecture Revolutionizes Public Cloud Load Balancing
Tencent Architect
Tencent Architect
Dec 4, 2023 · Operations

How AV1 Cut Bandwidth Costs by 59% for a Popular Karaoke App

The 全民K歌 app reduced video bandwidth by 59% and improved playback experience by adopting Tencent's TXAV1 encoder, achieving 60% AV1 playback share, 20% better compression than H.265, and extensive mobile device support through careful transcoding strategies and performance testing.

AV1Mobile StreamingTXAV1
0 likes · 11 min read
How AV1 Cut Bandwidth Costs by 59% for a Popular Karaoke App