Reading Flame Graphs: Where to Look First When CPU Is the Bottleneck
Learn how to read flame graphs to identify CPU bottlenecks fast. This guide covers flame graph mechanics, generation, and exactly where to look first.
Engineering
Deep dives into software engineering practices, code quality, architecture decisions, and development workflows for cloud and infrastructure teams.
Trino: Run Federated SQL Across S3, Postgres, Kafka, and Iceberg Without Moving a Single Byte
Query S3, Postgres, Kafka, and Iceberg with Trino’s federated SQL engine. No data movement, no ETL. Run multi-source analytics with Docker Compose.
TypeScript Conditional Types in Real API Design: Stop Writing Overloads
Learn TypeScript conditional types to replace function overloads in API design. Master type-level branching and the infer keyword for better code.
Two-Phase Commit vs Sagas in 2026: When to Use Each and Why It Actually Matters
Compare two-phase commit and sagas for distributed systems. Understand when to use each pattern with practical examples and implementation guidance.
Self-Hosted LLM Cost Engineering: Token Economics, Prefix Caching, and KV-Cache Sizing
Learn self-hosted LLM cost optimization: token economics, prefix caching, KV-cache sizing, and GPU efficiency techniques with real-world numbers.
Fan-Out on Write vs Fan-Out on Read: How to Design a Twitter-Scale Timeline
Discover fan-out patterns for Twitter-scale timelines. Learn write-time vs read-time tradeoffs and hybrid approaches for massive social feeds.
dyn vs impl in Rust: How to Design APIs That Don’t Come Back to Haunt You
Learn when to use dyn vs impl in Rust trait functions. Understand static dispatch, dynamic dispatch, and pick the right API design for your library.
Testing Distributed Systems Like FoundationDB: Deterministic Simulation That Actually Finds Bugs
Master deterministic simulation for testing distributed systems. Discover how FoundationDB’s technique eliminates heisenbugs and finds bugs other tests miss.
Your Test Suite Is Lying to You: Mutation Testing in Rust with cargo-mutants
Discover mutation testing in Rust with cargo-mutants. Find test gaps coverage misses. Learn to verify your test suite catches real bugs before production.