Animesh Kumar Mishra
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Animesh Kumar Mishra

Data compression math: what each database actually stores on disk

Shannon gives you the floor. Every database engine then makes different tradeoffs between compression ratio, read amplification, and CPU cost. Here is the math for four storage architectures.
2025-05-14
Data

Math is substrate

A note on why I think mathematics is not a language we invented to describe nature, but the structure nature is made of.
2025-04-21
Life

Inside a BNPL fraud score: the 300 ms budget and where it goes

A BNPL approval has one hard constraint: the user's thumb is already moving. Here is how the latency budget gets spent, and why the feature fetch — not the model — is the bottleneck.
2025-03-08
Fintech

ScyllaDB vs Cassandra: what the p99 actually looks like at fintech scale

We ran both in production. The headline numbers are real but the context around them matters more than the benchmarks vendors publish.
2025-02-12
Data

The KV cache miss your load balancer caused

On an 8-pod vLLM cluster, p90 TTFT went from 92 seconds to 0.54 seconds with no hardware changes. The only variable was whether the router knew where the KV cache was. This is a cache locality problem
2025-01-15
AI

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