☁️ Cloud & Infrastructure

AWS S3 Files: Cache Magic or Clever EFS Rebrand?

Everyone's hyped about AWS S3 Files. But does it deliver beyond the buzz? My tests reveal the cache tricks — and limits.

Benchmark graph of AWS S3 Files cold vs warm read speeds

⚡ Key Takeaways

  • S3 Files blends POSIX with S3 via EFS caching — 100x speedups on rewarm. 𝕏
  • Performance hinges on access patterns: small/hot files fly, cold/large lag. 𝕏
  • Architectural shift: S3 evolves to universal substrate, blurring file/object divides. 𝕏
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Originally reported by dev.to

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