Performance Optimization Archives

Programming tutorial - IT technology blog

Calling C Libraries from Python with ctypes and cffi: Speed Up CPU-Intensive Code Without Cython

August 26, 2026

When a Python data pipeline was timing out at 2 AM, the fix wasn't another algorithm tweak — it was calling a C function directly from Python using ctypes. This guide shows how to integrate C/C++ with Python via ctypes and cffi, call system libraries, and eliminate CPU bottlenecks without touching Cython or your build pipeline.

Linux

How to Configure Bcache on Linux: Boosting HDD Performance with SSD Caching

August 12, 2026

Learn how to use bcache to combine the high speed of an SSD with the large capacity of an HDD on Linux. This guide covers setup, performance tuning, and practical tips from real-world server management.

Programming

Speeding Up Python with Cython: From Bottlenecks to C-Level Performance

August 8, 2026

Is Python's speed holding your project back? Discover how to use Cython to eliminate interpreter overhead, add static typing, and achieve C-level performance while keeping your Python workflow.

Database

SQL Joins in Production: How We Fixed Our 10-Second Query Problem

June 1, 2026

A production-focused guide to SQL Joins. Learn the differences between INNER, LEFT, and FULL OUTER joins, and discover how to optimize query performance using indexing and CTEs based on real-world experience.

Linux

Stop Guessing: Automate Linux Performance with Tuned Profiles

May 28, 2026

Stop manual sysctl hacking. This guide shows you how to use Tuned to automate Linux performance for databases, web servers, and virtualization with real-world examples and custom profiles.

Programming

Node.js Worker Threads: Solving the CPU-Intensive Bottleneck in Production

May 18, 2026

Boost your Node.js performance by offloading CPU-bound tasks to Worker Threads. This guide covers thread pooling, memory sharing with SharedArrayBuffer, and real-world monitoring.

Database

Defeating Cache Penetration: Why I Switched to Redis Bloom and Cuckoo Filters

May 18, 2026

Is your database crashing from cache misses? Discover how Redis Bloom and Cuckoo Filters can block bot attacks and save your backend from Cache Penetration.

Programming

Hunting Node.js Memory Leaks: A Practical Guide to Chrome DevTools and Heap Snapshots

May 14, 2026

Master the 'Three Snapshot' technique using Chrome DevTools to pinpoint and fix Node.js memory leaks. A senior developer's guide to stabilizing the V8 heap and preventing OOM crashes.

Database

PostgreSQL Materialized Views: Turning 15-Second Queries into 5ms Snapshots

May 4, 2026

Stop making your users wait for slow dashboards. This guide shows you how to cache complex PostgreSQL queries using Materialized Views, including concurrent refresh tricks and automation.

Database

Choosing the Right Redis Caching Strategy: A Practical Guide

April 22, 2026

Master Redis caching patterns with this technical deep-dive. Learn when to use Cache-Aside, Write-Through, and Write-Behind to scale your backend performance.