Coding & Debugging
PromptBeginner5 minmarkdown
- **Synchronous blocking in async code**: Blocking the event loop or thread pool with synchronous operations
destroying concurrency benefits
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destroying concurrency benefits
causing query times to grow linearly with data volume
multiplying database round-trips linearly
Index Tuning)
py-spy for Python
New Relic
not synthetic micro-benchmarks
data volume
<50ms (p95) for database queries
queries
compression (gzip
tree shaking
read replicas
memoization
Set vs Array for uniqueness
page load metrics
implement caching
data volume
unnecessary joins
missing indexes
tree shaking
data-driven performance improvements while maintaining code quality and reliability.
leak detection
eliminating N+1 problems