Tag: Performance
17 posts
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[2026] SQL Query Optimization Practical Complete Guide | Index & Execution Plan
Index design, EXPLAIN, and common bottlenecks in N+1, joins, and subqueries. Practical guide to reducing slow queries. Focused on SQL, query optimizatio...
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[2026] 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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[2026] Kotlin Coroutines vs Threads | Concurrency Model, Cost, and When to Use Which
Complete comparison of Kotlin coroutines and OS threads: lightweight concurrency, memory overhead, scheduling, structured concurrency, Dispatchers, perf...
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[2026] MySQL Slow Query Tuning with EXPLAIN | Execution Plans & Index Design
Read MySQL EXPLAIN output, tune with type, key, rows, and Extra; use EXPLAIN ANALYZE, composite indexes, ANALYZE TABLE, and covering indexes—InnoDB/MySQ...
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[2026] Python Performance Optimization Case Study | 100× Faster Data Processing
From ~10 hours to minutes: profiling a Python CSV pipeline with cProfile, NumPy vectorization, Cython, and multiprocessing—real numbers and trade-offs.
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[2026] Python list vs tuple vs set | Mutability, Performance, and How to Choose
Compare Python list, tuple, and set: ordering, duplicates, big-O operations, memory, and a decision flowchart for real code.
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[2026] React useMemo and useCallback: When They Pay Off | Render Optimization
useMemo and useCallback in React: reference stability and expensive work—when to use them, how to avoid premature optimization, and how to verify with P...
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[2026] React Performance Optimization Complete Guide | useMemo, useCallback & Profiling
React performance optimization: when useMemo and useCallback help, when they hurt, memo with stable props, Context splitting, and React DevTools Profile...
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[2026] Redis Caching Strategies | Cache-Aside Through Refresh-Ahead & TTL Patterns
Five Redis caching patterns—Cache-Aside, Read-through, Write-through, Write-behind, Refresh-ahead—with TTL, invalidation, and Node.js-oriented examples ...
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[2026] Node.js Performance: Clustering, Caching, and Profiling
Node.js performance guide: use clustering for multi-core, Redis and in-memory caching, fix N+1 queries, profiling with --prof and clinic.js, benchmarkin...
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[2026] Why Is My C++ Program Slow? Find Bottlenecks with Profiling (perf, VS Profiler)
Beyond Big-O: copying, allocations, cache misses, branch mispredictions, virtual calls. Use perf and Visual Studio to find hotspots, flame graphs, and f...
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[2026] C++ Exception Performance: Zero-Cost, noexcept, and Error Codes
C++ exception model: zero-cost on success path, cost of throw and unwind, noexcept and vector moves, frequent errors vs exceptions, and -fno-exceptions.
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[2026] C++ Move Constructor: rvalue Stealing & noexcept Best Practices
C++ move constructors: rvalue resource transfer, copy vs move, vector and noexcept, self-move, and when not to std::move return locals.
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[2026] Python Meets C++: High-Performance Engines with pybind11 [#35-1]
Bind C++ to Python with pybind11: minimal modules, CMake/setuptools builds, NumPy buffers, GIL release, wheels, and production patterns. SEO: pybind11, ...
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[2026] Cache-Friendly C++: Data-Oriented Design Complete Guide
Data-oriented design for C++ performance: AoS vs SoA, cache lines, false sharing, alignment, benchmarks, and production patterns. SEO: cache optimizatio...
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[2026] C++ Profiling | Finding Bottlenecks with perf and gprof When You Don’t Know What’s Slow
Measure before you optimize: C++ profiling with Linux perf, gprof, flame graphs, std::chrono, and Valgrind. Fix bottlenecks with data, not guesses—CPU s...
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[2026] 5 Optimization Techniques to Make Turborepo Builds 10x Faster
A practical optimization guide to reduce Turborepo build time from 10 minutes to 1 minute. Covers caching strategies, parallel execution, Remote Cache, ...