Articles tagged with #Performance
A curated list of engineering series, deep dives, and notes related to #Performance.
Building a Custom In-Memory Data Store in Java: The Collections Capstone
Build a production-grade in-memory key-value database in Java from scratch using custom data structures: HashMaps, LRU caches, priority queues, and SkipLists.
Advanced SQL Performance Tuning: Window Functions, Recursive CTEs, and Partitioning
Master advanced SQL optimization: Window function framing, recursive CTE tree traversals, and table partitioning with partition pruning.
Experimentation Architecture: Feature Flag Engines, Statistical A/B Testing, and Zero-Latency Evaluation
Master Experimentation Architecture. Learn zero-latency feature flag evaluation, deterministic MurmurHash3 user bucketing, and layout flicker prevention.
High-Performance Java: How EnumSet and EnumMap Achieve Zero-Allocation Speed
Discover why EnumSet and EnumMap are the fastest collections in Java. Learn how 64-bit long bitmasks execute set operations in 1 CPU cycle.
MySQL vs PostgreSQL MVCC: Heap Tuple Versions vs Undo Log Segments
Compare MySQL InnoDB and PostgreSQL MVCC implementations: Undo log version chains vs in-page heap tuples, HOT optimizations, and VACUUM engines.
In-Source Testing & Zero-Overhead Production Dead Code Elimination
Learn how to use Vitest in-source testing to co-locate code and tests without inflating bundle size.
Edge Rendering & Server Components: SSR Hydration, Static Regeneration (ISR), and React Server Components
Master Edge Rendering & React Server Components (RSC). Learn SSR hydration, Incremental Static Regeneration (ISR), and RSC stream protocols.
Storage Drivers Deep Dive: OverlayFS Layering and Copy-On-Write (CoW) Performance Overhead
Deep dive into Docker OverlayFS storage drivers: lowerdir image layers, upperdir writable layers, mergedir unified views, and Copy-on-Write (CoW) latency.
Hibernate ORM and Spring Data JPA: Entity Management and N+1 Query Traps
Dissect Hibernate ORM and Spring Data JPA internals. Master the Persistence Context, entity states, lazy loading proxies, and solutions for N+1 queries.
InnoDB Primary Clustered Indexes vs Secondary Index Lookups (The Double Lookup Cost)
Explore InnoDB clustered index architectures, secondary index lookup mechanics, double lookup costs, and why UUID v4 primary keys degrade database insertion performance.
Distributed Caching Patterns: Cache-Aside, Write-Through, Write-Back, and Cache Stampedes
Master distributed caching patterns. Learn Cache-Aside, Write-Through, Write-Back, Cache Penetration, Cache Breakdown, and Thundering Herd mitigation.
Composite & Covering Indexes: Maximizing Index-Only Scans and Avoiding Table Lookups
Master multi-column composite indexes in MySQL: leftmost prefix rules, range predicate traps, Index Condition Pushdown (ICP), and covering indexes.
Web Performance Engineering: Optimizing Core Web Vitals (LCP, INP, CLS) and Frame Budgeting
Master Web Performance Engineering. Learn Core Web Vitals optimization (LCP, INP, CLS), main-thread task yielding, and frame budgeting.
Worker Thread Pool Isolation: How Tinypool & Worker Threads Execute Tests in Parallel
Understand Vitest's process and thread isolation model powered by tinypool and Node worker_threads.
Why Jest Slows Down at Scale: Dual Module Graphs & ESM Interop Bottlenecks
Examine the technical causes of Jest test suite slowdowns: CommonJS transformations, custom module resolution, and memory leaks.
Kafka Producer Internals: Tuning RecordAccumulator, batch.size & linger.ms
Deep dive into KafkaProducer mechanics. Learn how RecordAccumulator, batch.size, linger.ms, and ZSTD batch compression maximize streaming throughput.
Vitest Architecture & Modern Testing Systems: Series Introduction
Master Vitest from first principles: Vite transform pipelines, tinypool isolation, module hoisting, fake timers, and custom reporters.
Dockerfile Instructions and Layer Mechanics: How Build Caching Works Under the Hood
Master Dockerfile build caching: cache invalidation cascades, COPY content checksums, instruction ordering optimization, and Exec vs Shell forms.
Kafka Storage Internals: Log Segments, Sparse Indexes & Log Compaction
Learn how Kafka locates any message in microseconds using sparse memory-mapped index files (.index) and prunes stale keys using Log Compaction.
React Architecture Under the Hood: Fiber Tree Reconciliation, Priority Scheduling, and Concurrent Mode
Deconstruct React Fiber architecture from first principles. Learn double buffering, priority lane scheduling, concurrent rendering, and hydration.
Kafka Zero-Copy Optimization: How sendfile() Streams Millions of Events/Sec
Discover how Kafka uses Java NIO transferTo() and Linux sendfile() Zero-Copy optimization to stream gigabits of data per second with minimal CPU load.
Modern Web Networking: HTTP/2 Multiplexing, HTTP/3 QUIC, WebSockets, and Server-Sent Events
Master modern web networking protocols. Compare HTTP/2 multiplexing, HTTP/3 QUIC over UDP, WebSockets, and Server-Sent Events (SSE).
JavaScript V8 Engine Internals: JIT Compilation, Hidden Classes, and Event Loop Mechanics
Master V8 engine internals from first principles. Learn Ignition bytecode, TurboFan JIT compilation, Hidden Classes (Maps), and GC generational collectors.
Kafka Performance Secrets: Why Sequential Disk I/O Beats Random RAM Access
Learn why Kafka stores all events on disk. Understand how sequential disk writes and Linux OS Page Cache bypass JVM Garbage Collection pauses.
How Browsers Work: DOM Parsing, CSSOM Construction, and the Critical Rendering Path
Deconstruct browser rendering engines from first principles. Learn DOM parsing DFAs, CSSOM selector matching, layout reflows, and GPU layer compositing.
Mastering Java Collections from First Principles: Series Introduction & Learning Roadmap
Discover what you will learn in this 25-part series on Java Collections internals. Build data structures from scratch and master memory mechanics.