Shubhankar Gambhir

JVM runtime engineering, systems performance, and low-level C++

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The Alignment Cliff: Tracing a 0.478 ns Penalty to Skylake's Micro-Op Cache Jun 15, 2026

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The 0.48 ns Ghost: How Code Alignment Broke Our Dispatch Benchmarks
The Alignment Cliff: Tracing a 0.478 ns Penalty to Skylake's Micro-Op Cache
Four Ways to Dispatch a Runtime-Selected Strategy in C++
Lazy Resolution: Resolve Once, Dispatch Forever
Why std::visit May Be Slower Than a Vtable

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benchmarks dispatch variant virtual assembly crtp function-pointer alignment cache-line dsb