Moving Beyond Disk: How Redis Supercharges Your App Performance

If your database is the heart of your application, Redis is the adrenaline. When we hit 50,000 users, our PostgreSQL instance began to sweat. CPU usage was spiking, and read-heavy endpoints were dragging the whole system down. We realized that the fastest database query is the one that never happens

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Gavin Hemsada

📅 Mar 21, 2026·⏱ 5 min read·Dev.to ↗

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https://dev.to/gavin_hemsada_e40424b9d48/moving-beyond-disk-how-redis-supercharges-your-app-performance-4nfb

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Moving Beyond Disk: How Redis Supercharges Your App Performance

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