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AI infrastructure

32 posts tagged ai-infrastructure.

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Sep 2, 2026

What Scale to Zero Cost Me to Build: 50s Sleeps, 14s Wakes

Hibernate took 50 seconds. Wake took 14, not the 1.3 I had reported. The measured price of building scale to zero on a Firecracker fleet, and every fix.

9 min
Sep 2, 2026

Checkpoint Restore Implementation: What It Cost Me to Build

Analysts call checkpoint/restore table stakes by 2027. Here is the real bill: snapshot storage, userfaultfd lazy restore, and a 50s hibernate vs 1.2s wake.

9 min
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Ajay Kumar

Infrastructure engineer, 14 years. I build systems that run other people's code safely — and I'm available for consulting.

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