Blog Posts
When 'Average' is not enough
- Stefano
- Backend , Observability
- 26 Dec, 2025
How we used the Poisson distribution's variance-to-mean ratio to diagnose bursty traffic that standard Prometheus dashboards couldn't see, and fixed latency spikes without scaling up.
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From 5 Seconds to 480ms: A Performance Optimization Journey
- Stefano
- Programming
- 25 Oct, 2025
The goal was simple: read a CSV of 10 million trades, aggregate them into OHLCV bars (Open/High/Low/Close/Volume) by time window, and do it fast in C++ and then Rust.
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