Nginx Proxy Buffering vs Streaming for Server-Sent Events
Proxy buffering can delay server-sent events even when the application flushes promptly. Start from concrete production requirements rather than copying a...
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Git Sparse Checkout vs Partial Clone for Large Monorepos
Sparse checkout reduces the working tree while partial clone postpones downloading selected Git objects. Start from concrete production requirements rather...
Go Database Connection Pool Sizing for High-Concurrency APIs
Increasing the pool size can increase contention and overload the database instead of improving throughput. The sql.DB abstraction manages connections and...
PostgreSQL Partial Indexes vs Composite Indexes for Soft-Deleted Rows
Soft-delete tables often query active rows repeatedly while retaining large volumes of historical records. A partial index narrows indexed rows with a WHERE...
Latency Optimization for LLM Applications: Streaming, Parallel Calls, and Smaller Models
Quick answer: LLM latency comes mostly from processing the prompt and then generating output tokens one by one. Cut it by shortening prompts and outputs,...
LLM Cost Control With Prompt Caching and Output Length Limits
Quick answer: LLM cost is mostly tokens multiplied by price, so reduce both. Measure cost per feature first, then trim prompts, retrieve fewer and better...
LLM Observability: What to Log and Trace in Production AI Features
Quick answer: log every LLM call as a trace with the prompt version, model and parameters, redacted inputs and outputs, retrieved document IDs, tool calls,...
Embedding Model Versioning and Reindexing Strategies for Vector Search
Quick answer: vectors produced by different embedding models, or different versions of one model, live in different spaces and cannot be compared. Store the...
LLM Prompt Versioning and Regression Testing for Production Apps
Quick answer: treat prompts like code. Store them in version control, give each one a version identifier, and run a fixed regression test set against every...