Tag: optimization
7 posts
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[2026] C++ Cache Optimization: Locality, False Sharing, SoA vs AoS
Improve CPU cache efficiency in C++: spatial locality, matrix layout, struct packing, prefetching, blocking, false sharing, and alignment for SIMD.
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[2026] C++ Copy Elision | When Copies and Moves Disappear
Copy elision: RVO, NRVO, C++17 guaranteed elision for prvalues, parameter initialization, and why returning local variables with std::move often hurts.
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[2026] C++ noexcept Complete Guide | Exception Specifications & Move Optimization
Master C++ noexcept: exception specifications, conditional noexcept, why move operations need noexcept for container optimization, terminate on violatio...
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[2026] C++ Performance Optimization: Copies, Allocations, Cache, and SIMD
Speed up C++ code: pass by const reference, move semantics, vector reserve, object pools, cache-friendly layouts, compiler flags (-O2, LTO), and profiling.
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[2026] C++ Profiling: Find Bottlenecks with Timers, gprof, perf, and Callgrind
C++ profiling guide: chrono timers, gprof, Linux perf, Valgrind Callgrind, and common pitfalls—measure before you optimize.
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[2026] C++ RVO and NRVO | Return Value Optimization Complete Guide
RVO vs NRVO: when the compiler elides copies on return, C++17 guaranteed elision for prvalues, NRVO heuristics, and interaction with move semantics.
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[2026] The Complete Guide to C++ Expression Templates | Lazy Evaluation and Mathematical Library Optimization
A complete guide to Expression Templates. Learn about lazy evaluation, eliminating temporary objects, optimizing vector operations, and implementing Eig...