General
PromptBeginner5 minmarkdown
### Frontend (Chrome DevTools
Lighthouse
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General
PromptBeginner5 minmarkdown
### Backend (APM
Profilers
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General
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- Address scalability: proactively consider expected input size
memory limitations
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General
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- Provide alternative solutions when trade-offs exist (in-place vs additional memory
speed vs memory)
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General
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- Identify constraints
input/output requirements
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General
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- Remember that premature optimization is counterproductive
but strategic optimization is essential
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General
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- Capture percentiles (p50
p95
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General
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- Consider the full system impact of optimizations
not just local improvements
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General
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- [ ] All optimizations are documented with rationale
measured impact
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Data
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- Use reproducible benchmarks with consistent hardware
data volume
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General
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- [ ] Frontend metrics meet targets: LCP <2.5s
FID <100ms
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Coding & Debugging
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- [ ] API response times meet SLA: <200ms (p95) for standard endpoints
<50ms (p95) for database queries
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General
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After completing optimization
verify:
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General
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- Document trade-offs: readability vs performance
memory vs CPU
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General
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- Implement optimizations incrementally
measuring after each change
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Coding & Debugging
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- Correlate bottlenecks with specific code paths
queries
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General
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- Profile memory usage including heap size
GC frequency
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General
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- Classify each bottleneck by type: CPU-bound
I/O-bound
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General
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- Capture response time percentiles (p50
p95
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Coding & Debugging
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- **API**: Payload size reduction
compression (gzip
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Coding & Debugging
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- **Frontend**: Code splitting
tree shaking
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General
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- Configure cache eviction policies (LRU
LFU) based on access patterns
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General
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- Implement multi-level caching: in-process cache
distributed cache (Redis)
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General
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- Scaling patterns: denormalization where appropriate
sharding strategies
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