expert-performance

Diagnose bottlenecks and generate optimization plans with measurable baselines.

13|3|Updated Apr 7, 2026
One-click install
npx skills add https://github.com/wonderslife/pdd-skills-v3 --skill expert-performance
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: expert-performance
Source: https://github.com/wonderslife/pdd-skills-v3/tree/main/skills/expert/expert-performance
Command: npx skills add https://github.com/wonderslife/pdd-skills-v3 --skill expert-performance

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Diagnose bottlenecks and guide system-wide performance optimization across the stack.

Core Features & Use Cases

  • Bottleneck diagnosis across CPU, memory, I/O, and network to pinpoint hotspots.
  • JVM tuning, database performance analysis, caching strategy design, and load testing guidance.
  • Use Case: When latency spikes occur under load, provide actionable optimization plans with measurable baselines.

Quick Start

Run a baseline assessment to identify the top bottleneck area and generate an optimization plan.

Frequently Asked Questions about expert-performance

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I identify performance bottlenecks when latency spikes occur under load?

For database latency issues, database performance analysis pinpoints slow queries and transaction bottlenecks, while caching strategy design reduces direct database load to improve throughput and minimize latency.

What is the best way to approach JVM tuning for microservices?

The best way to approach JVM tuning for microservices is applying data-driven diagnostics to enforce guardrails with monitoring baselines and single-variable changes, ensuring regression-ready output for stable throughput.

Can I use this to plan load testing for throughput constraints?

Yes, you can use load testing guidance to address throughput constraints across microservices by establishing monitoring baselines before applying single-variable changes to measure performance improvements accurately.

Why should I enforce single-variable changes during performance optimization?

You should enforce single-variable changes during performance optimization to ensure regression-ready output, allowing data-driven diagnostics to accurately attribute throughput improvements or latency reductions to specific system modifications.

Does bottleneck diagnosis work across the entire stack or only specific layers?

Bottleneck diagnosis works across the entire stack, pinpointing hotspots across CPU, memory, I/O, and network to drive system-wide performance optimization for live systems experiencing latency spikes and throughput constraints.