Blog
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5 Cache Optimization Techniques to Boost C++ Performance 10x | Real Benchmarks
Practical C++ cache optimization guide to boost program performance 10x. Covers array traversal, struct alignment, AoS vs SoA, and False Sharing solutio...
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C++ Cache Replacement Algorithms Complete Guide | FIFO·LRU·LFU·Clock·MRU·OPT Comparison
Comprehensive guide to cache replacement policies similar to LRU. FIFO·LFU·MRU·Random·Clock(Second Chance)·OPT intuition, pros/cons, complexity, real-wo...
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C++ Calendar & Timezone | year_month_day·zoned_time Complete Guide
C++20 calendar and timezone: year_month_day, zoned_time, weekday for date arithmetic, timezone conversion, and weekday calculation with practical examples.
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C++ call_once | 'Call Once' Complete Guide
std::call_once is a C++11 function that guarantees a function executes exactly once, even when called from multiple threads. Used with std::once_flag to...
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C++ Memory Leak Debugging Case Study | Fixing a Production Server Memory Spike
A real production C++ server memory leak: tracing and fixing it with Valgrind, ASan, and Heaptrack—from symptoms and root cause to fixes and prevention.
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C++ Performance Optimization Case Study | 200ms API Latency Cut to 20ms
How we improved a C++ REST API latency by 10×: profiling with perf, algorithm fixes, memory optimizations, and parallel JSON serialization—end to end.
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C++ Crash Debugging Case Study | Fixing an Intermittent Segmentation Fault
Production C++ server: intermittent segfaults traced with core dumps, gdb, and rr—how to debug “cannot reproduce” crashes and data races.
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C++ Casting | 'static_cast/dynamic_cast' Complete Guide to 4 Types
C++ casting complete guide: static_cast, dynamic_cast, const_cast, reinterpret_cast. Master principles, code examples, and practical applications.
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C++ I/O Optimization Cheatsheet | sync_with_stdio·cin.tie·TLE Prevention Complete Guide
C++ I/O optimization for coding test TLE prevention. ios::sync_with_stdio(false)·cin.tie(nullptr) principles, getline vs cin, buffers, templates, benchm...
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Modern C++ (C++11~C++20) Core Syntax Cheatsheet | auto·Lambda·Smart Pointers·Concepts at a Glance
Modern C++ C++11~C++20 core syntax cheatsheet. auto, range-for, lambda, smart pointers, optional, variant, Concepts, Ranges copy-paste ready summary for...