performance-debug

name	performance-debug
description	Diagnosing and resolving performance bottlenecks and latency issues

Performance Debugging Skill

This skill focuses on identifying, analyzing, and resolving performance-related issues such as slow response times, CPU spikes, and UI lag.

When to use this skill

• When the application is responding slower than SLAs allow.
• When CPU usage is unexpectedly high.
• When identifying database query bottlenecks (N+1 queries, missing indexes).

Guidelines

• Measure First: Do not guess. Use profilers, APMs (Datadog, New Relic), and logging to find the bottleneck.
• Isolate the Scope: Determine if the issue is in the frontend, network, backend, or database layer.
• Algorithmic Complexity: Check for accidental O(n^2) or worse loops.
• Caching: Consider if a caching layer (Redis, Memcached) can bypass the heavy computation.