startup-time-profiler
Profile and optimize application startup time, identifying bottlenecks in initialization, module loading, and rendering.
Capabilities
- •Measure cold and warm start times
- •Identify module loading bottlenecks
- •Profile initialization phases
- •Generate timeline visualizations
- •Provide optimization recommendations
- •Set up CI performance tracking
Input Schema
json
{
"type": "object",
"properties": {
"projectPath": { "type": "string" },
"framework": { "enum": ["electron", "tauri", "native"] },
"iterations": { "type": "number", "default": 5 }
},
"required": ["projectPath"]
}
Electron Startup Profiling
javascript
// Add to main.js
const startTime = Date.now();
app.on('ready', () => {
console.log(`App ready: ${Date.now() - startTime}ms`);
});
// Enable tracing
app.commandLine.appendSwitch('trace-startup');
app.commandLine.appendSwitch('trace-startup-file', 'startup-trace.json');
Optimization Techniques
- •Lazy load modules
- •Defer non-critical initialization
- •Optimize bundle size
- •Use V8 snapshots
- •Preload critical resources
Benchmarks
| Metric | Good | Acceptable | Poor |
|---|---|---|---|
| Cold start | < 2s | < 4s | > 6s |
| Warm start | < 1s | < 2s | > 3s |
| Window visible | < 1.5s | < 3s | > 5s |
Related Skills
- •
memory-leak-detector - •
bundle-size-analyzer