Track 20 — System Design & Architecture
20.3: Caching Layer Economics
Redis costs vs database scale-up costs, cache invalidation risk, and CDN ROI.
3 Lessons~45 min
🎯 What You'll Learn
- ✓ Compare Redis vs DB costs
- ✓ Measure cache invalidation risk
- ✓ Calculate CDN ROI
- ✓ Optimize read speed limits
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