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System Design - EP 13: Content Delivery Networks (CDNs)
We’ve all been there. You click a link, and the page hangs. In 2026, a slow website isn’t just annoying—it’s a deal‑breaker. As developers, we know Speed = Reve...
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Handshake: o custo invísivel das APIs modernas
O que está acontecendo? Quando localmente a API responde em 20 ms, os logs não apontam gargalos, o banco já foi otimizado e o código está limpo. Pronto para pro...
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I/O is no longer the bottleneck? (2022)
Article URL: https://stoppels.ch/2022/11/27/io-is-no-longer-the-bottleneck.html Comments URL: https://news.ycombinator.com/item?id=46506994 Points: 29 Comments:...
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🧠_Deep_Dive_Memory_Management_Performance[20260104084429]
Introduction As an engineer who has experienced countless performance‑tuning cases, I deeply understand how much memory management affects web‑application perf...
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EP 7: The 'Join' Tax vs. The 'Storage' Tax
SQL vs NoSQL Trade‑offs When we talk about SQL vs. NoSQL in system design, we move past syntax to the core trade‑offs. In a real‑world system you choose a data...
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⚡_Latency_Optimization_Practical_Guide[20251231224938]
'Latency‑Optimization Experience – Real‑World Financial Trading System Engineer: System‑Performance Specialist 10 years
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🧠_Deep_Dive_Memory_Management_Performance[20251230010751]
Deep Dive: Memory Management & GC Performance Traps _As an engineer who has tackled countless performance‑tuning cases, I know how critical memory management is...
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Why averages lie: p99 latency is what users actually feel
Introduction Most performance dashboards look fine: - Average latency: low - CPU: stable - Memory: healthy Yet users complain that “the app feels slow”. This i...
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🧠_Deep_Dive_Memory_Management_Performance
A Deep Dive into Memory Management & GC‑Related Performance Traps As an engineer who has tackled countless performance‑tuning cases, I know how crucial memory...
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Building a Global App in 2026: Zero Latency Is a Lie (Here’s What Actually Works)
Zero latency is just latency we haven’t measured yet. Every few months someone asks: > How do I build an app that works worldwide with zero latency and minimum...
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“𝐇𝐨𝐰 𝐆𝐨𝐨𝐠𝐥𝐞 𝐬𝐡𝐨𝐰𝐬 𝐲𝐨𝐮 𝐬𝐞𝐚𝐫𝐜𝐡 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 𝐢𝐧 𝟎.𝟑 𝐬𝐞𝐜𝐨𝐧𝐝𝐬 (𝐭𝐡𝐞𝐲’𝐫𝐞 𝐜𝐡𝐞𝐚𝐭𝐢𝐧𝐠, 𝐚𝐧𝐝 𝐲𝐨𝐮 𝐬𝐡𝐨𝐮𝐥𝐝 𝐭𝐨𝐨)”
Hm… I think internet cannot be searched; you only look up on Google, right? You type “best jollof rice in Lagos” into Google. Three hundred milliseconds later,...