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DeWu Technology

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Latest from DeWu Technology

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DeWu Technology

Apr 28, 2025 · Databases

GreptimeDB Distributed Architecture, Transparent Caching, and Flow‑Based Real‑Time Analytics

GreptimeDB solves front‑end observability challenges with a distributed architecture (frontend, datanode, flownode, metasrv), transparent two‑level caching, elastic scaling, and an SQL‑based flow engine for real‑time multi‑granularity aggregation and approximate counting, delivering millisecond query latency and cost‑effective storage.

GreptimeDBHyperLogLogReal-time analytics

0 likes · 12 min read

GreptimeDB Distributed Architecture, Transparent Caching, and Flow‑Based Real‑Time Analytics

DeWu Technology

Apr 23, 2025 · Backend Development

Design and Implementation of a Business Parameter Configuration Center

The article presents the Business Parameter Configuration Center (BPCC), a declarative platform that automatically generates front‑end pages and corresponding CRUD services, detailing its layered architecture, core concepts such as elements, dimensions, parameters and schemes, SDK query flow, priority rules, multi‑selection handling, import/export workflow, and outlining scenarios where BPCC is unsuitable.

ArchitectureConfigurationSDK

0 likes · 15 min read

Design and Implementation of a Business Parameter Configuration Center

DeWu Technology

Apr 21, 2025 · Backend Development

Design and Evolution of a Unified Exchange Mall Middleware Platform

The unified exchange mall middleware platform consolidates disparate points‑redemption and lottery flows into a four‑layer architecture—business, gameplay templates, domain models, and downstream services—offering standardized APIs, dynamic RPC routing, Redis‑based inventory control, anti‑fraud safeguards, and built‑in monitoring, thereby cutting development costs, enhancing maintainability, and ensuring system stability.

GolangMicroservicesMonitoring

0 likes · 18 min read

Design and Evolution of a Unified Exchange Mall Middleware Platform

DeWu Technology

Apr 16, 2025 · Databases

DGraph 2024 Architecture Upgrade and Performance Optimizations

In 2024 DGraph upgraded its architecture by splitting single clusters into multiple business‑specific clusters, adopting a sharded active‑active topology, and replacing its 1:N thread‑pool with an M:N grouped execution model that uses atomic scheduling, while parallelizing FlatBuffer encoding, streamlining SDK conversions, adding DAG debugging, timeline analysis, and dynamic sub‑graph templates to boost scalability, stability and developer productivity.

Backend EngineeringDAGPerformance optimization

0 likes · 13 min read

DGraph 2024 Architecture Upgrade and Performance Optimizations

DeWu Technology

Apr 14, 2025 · Artificial Intelligence

Overview of Recent Large Language Model Quantization Techniques

The article surveys modern post‑training quantization approaches for large language models, detailing weight‑only and activation‑aware methods such as GPTQ, AWQ, HQQ, SmoothQuant, QuIP, QuaRot, SpinQuant, QQQ, QoQ, and FP8, and compares their precision levels, algorithmic steps, accuracy‑throughput trade‑offs, and implementation considerations for efficient inference.

AILLMPost‑Training Quantization

0 likes · 32 min read

Overview of Recent Large Language Model Quantization Techniques

DeWu Technology

Apr 9, 2025 · Databases

Understanding Elasticsearch Indexes, Mappings, and Shard Architecture

The article explains Elasticsearch indexes as logical namespaces for JSON documents, details how mappings define immutable field types such as text, keyword, and numeric, describes primary and replica shard roles, and offers practical guidance on alias usage, shard sizing, replica settings, and performance optimizations to ensure cluster stability.

ElasticsearchMappingPerformance

0 likes · 20 min read

Understanding Elasticsearch Indexes, Mappings, and Shard Architecture

DeWu Technology

Apr 7, 2025 · Industry Insights

How DPP Evolved from Fixed Engine to DAG‑Based Orchestration for Faster Recommendation Iterations

This article explains the DPP platform’s overall architecture, its key features for rapid iteration, and the three‑stage evolution of its orchestration engine—from the fixed DPP‑Engine to the flexible BizEngine and finally the graph‑based DagEngine—detailing design decisions, protocols, challenges, and future directions.

DAGDPPOrchestration

0 likes · 16 min read

How DPP Evolved from Fixed Engine to DAG‑Based Orchestration for Faster Recommendation Iterations

DeWu Technology

Apr 2, 2025 · Frontend Development

Enhancing Front-End Development with Cursor AI: Workflow, Planning, and Impact Assessment

The article explains how integrating the Cursor AI assistant into front‑end development reshapes workflow by separating planning from execution, using iterative context loops for analysis, design, and impact assessment, guiding minimal‑change code generation and testing, and ultimately shifting developer skill from memorizing APIs to asking precise questions.

AI-assisted developmentTestingcode generation

0 likes · 13 min read

Enhancing Front-End Development with Cursor AI: Workflow, Planning, and Impact Assessment

DeWu Technology

Mar 31, 2025 · Mobile Development

Analyzing and Optimizing iOS dyld BuildingClosure to Reduce Startup Time

The DeWu Tech article dissects iOS’s dyld BuildingClosure stage, shows how hash‑collision‑laden selector strings inflate its runtime, and demonstrates that renaming the colliding selectors reduces perfect‑hash iterations, cutting the phase’s duration by roughly 80% and noticeably speeding up app startup.

dyldiOSperfect hash

0 likes · 11 min read

Analyzing and Optimizing iOS dyld BuildingClosure to Reduce Startup Time

DeWu Technology

Mar 26, 2025 · Fundamentals

Consistency Challenges and Solutions in Distributed Systems: CAP, BASE, RPC, and Messaging

To address consistency problems in distributed systems, the article explains CAP and BASE trade‑offs, shows how transactional RPC and messaging—using retries, RocketMQ two‑phase commits, Spring @TransactionalEventListener, or a local message log—can ensure atomic updates, and compares their reliability, latency, and performance impacts.

BASE theoryCAP theoremDistributed Consistency

0 likes · 12 min read

Consistency Challenges and Solutions in Distributed Systems: CAP, BASE, RPC, and Messaging