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performance
240 postsYour AI Agent's Bill Tripled Overnight Due to Prompt Cache Issues
An AI agent's API bill tripled due to a broken prompt cache. Proper configuration is crucial.
Why AI-Built Apps Feel Fast in Testing and Break in Production
AI-built applications may perform well initially but can encounter scalability issues in production.
I Gave an AI Agent an Impossible Target to See If It Would Cheat
Explore the process of an AI agent working toward a target and its engineering significance.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comEngineering High-Performance Parsers with Data-Oriented Design
Explore the importance of data-oriented design in building high-performance parsers like Yuku.
Handling Large PDFs in Node.js Without Unbounded Buffering
Learn how to overcome memory issues in Node.js PDF verification with a two-step upload pattern that separates upload from analysis.
Quadrupling Code Performance with a "Useless" If
Discover how a "useless" if can enhance code performance by reducing latency. Improve efficiency and throughput.
200KB Binaries: A New Approach to Web Serving
A web page served from a native binary handles 20,000 requests. Discover insights on this new memory management approach.
How DORA Metrics Measure Security Posture Health
Discover how DORA metrics can be adapted to measure security posture health and enhance team performance.
How Lazy Loading Images Affected My Core Web Vitals
A new design and lazy loading strategy negatively impacted my Core Web Vitals. Learn about the performance drop and solutions.
Mastering Custom C++ Kernels for Edge AI on Android via NDK
A technical look at bypassing Kotlin's abstraction tax for on-device LLMs using JNI, zero-copy buffers, and NPU-aligned C++ kernels via the Android NDK.