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Francesco Nigro

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Reactive ❤️ Loom: A Forbidden Love StoryVoxxed Days Zurich 20262026-03-24
Quarkus and Netty experiments show a custom Loom scheduler that runs virtual threads on the same platform threads as Netty event loops, implemented in ~400…
Talk on
Reactive ❤️ Loom: A Forbidden Love StoryVoxxed Days Ticino 20262026-02-05
Quarkus/Vert.x/Netty experiments show virtual threads improve throughput ~30% over classic setups, but a custom Netty scheduler built on Loom yields up to ~37%…
Talk on
Benchmarketing fallacies: the 100 shades of truthVoxxed Days Ticino 20252025-01-16
Examines how benchmark claims break when filters or options remove competing implementations, using teeken power filter that hides ORM usage as a concrete…
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Measure, don’t guess: benchmarking stories from the trenchesDevoxx Belgium 20242024-10-07
Shows concrete pitfalls and fixes: uses JMH harness plus perf and async-profiler to reproduce dead‑code elimination that reports absurd ops/sec, a black hole…
Talk on
How a Two-Decade-Old Issue Still Haunts Software ScalabilityVoxxed Days Ticino 20242024-01-19
A JVM-level bug in the secondary super cache makes repeated interface checks catastrophically unstable: profiling found up to three billion type checks (about…
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How Not to Do BenchmarkingVoxxed Days Milano 20192019-04-13
Shows common mistakes when benchmarking JVM code and why modern JVM optimizations can make naïve measurements misleading. Uses negative examples to demonstrate…
Talk in Italian on
Set Your Code on Fire with FlameGraphsVoxxed Days Ticino 20182018-10-20
FlameGraphs are used to visualize sampled JVM stacks to show where execution time actually goes, not just which methods are named. The talk explains why…
Talk in Italian on
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