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profiling-performance

Profile CPU call stacks and timing data in web applications using Cursor's browser profiler.

2|Updated Apr 3, 2026
Search Tags:#performance#debugging#javascript#cpu#profile#web-app#browser-profiler
One-click install
npx skills add https://github.com/kscius/KS-Cursor-Orchestrator --skill profiling-performance-kscius
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: profiling-performance
Source: https://github.com/kscius/KS-Cursor-Orchestrator/tree/main/skills/profiling-performance
Command: npx skills add https://github.com/kscius/KS-Cursor-Orchestrator --skill profiling-performance-kscius

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Profile CPU performance issues in a running web application by collecting real call stacks and timing data, helping you pinpoint bottlenecks.

Core Features & Use Cases

  • Real-time CPU profiling using Cursor's built-in browser profiler to capture call stacks and timing data.
  • Persisted logs that include raw JSON profiles and human-readable summaries for later analysis.
  • Use Case: When a page feels slow or unresponsive, profile the slow interactions and identify expensive functions or re-renders.

Quick Start

Navigate to the slow page, start the browser profiler, reproduce the slowdown, and stop to view the results.

Frequently Asked Questions about profiling-performance

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

FAQPage Schema
How do I profile CPU performance issues in a web application?▼

Profile CPU performance in a web app by using Cursor's browser profiler to start and stop recording on a slow page, capturing real call stacks and timing data to pinpoint bottlenecks.

What is the best way to diagnose slow JavaScript interactions in my web app?▼

Diagnose slow JavaScript interactions by profiling runtime call stacks and timing data with a browser profiler to identify expensive functions or re-renders causing web app unresponsiveness.

Do I need a running web application to use a browser profiler for debugging?▼

Yes, you need a running web application with performance concerns, access to browser profiler tools, and a designated log directory to store the generated cpu-profile JSON and summary files.

Can I save and analyze CPU profile data after recording a web app session?▼

Yes, profiling logs are persisted to a designated directory, storing raw cpu-profile JSON files and human-readable summaries for later offline analysis of your web app's runtime performance.

Why does my web app feel unresponsive when I interact with specific pages?▼

Web app pages feel unresponsive due to expensive JavaScript functions or excessive re-renders, which you can identify by profiling runtime call stacks and timing data during the slow interactions.

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