performance-tuning Archives

Programming tutorial - IT technology blog

Mastering Golang Memory Profiling: A Practical Guide with pprof

September 3, 2026

Master Golang memory profiling using pprof to identify leaks and optimize performance. Learn how to use heap profiles, flame graphs, and practical coding patterns to keep your Go applications lean.

Linux

Troubleshooting Linux at Runtime: A Practical Guide to BCC and eBPF

August 25, 2026

Stop guessing why your Linux server is slow. Learn how to use BCC and eBPF tools like execsnoop, biolatency, and tcptop to diagnose I/O, network, and process issues in real-time.

Linux

Breathe New Life into Old Hardware: A Linux Optimization Guide

August 24, 2026

Revive aging hardware with this Linux performance guide. Learn to replace heavy desktop environments, use Zram for memory compression, and tune the kernel for a lag-free experience.

Database

PostgreSQL Benchmarking with pgbench: Measuring Real-World TPS

August 24, 2026

Stop guessing and start measuring. Learn how to use pgbench to establish performance baselines, write custom SQL stress tests, and validate PostgreSQL tuning results.

Database

Mastering the MySQL Slow Query Log: Stop Guessing and Start Fixing Production Bottlenecks

August 21, 2026

Is your MySQL database dragging? Learn how to use the Slow Query Log to identify hidden performance bottlenecks, configure logging for production, and use tools like pt-query-digest to speed up your app.

Database

Beyond the Redis Hype: When Memcached is the Right Choice for High-Scale Caching

August 21, 2026

A real-world look at solving database bottlenecks using Memcached. Learn why its multithreaded architecture often outperforms Redis for simple, high-volume key-value caching.

Programming

Fixing a 2 AM Production Crash with Dynamic Programming in Python

August 15, 2026

How a 2 AM production crash revealed the dangers of naive recursion. Learn to use Memoization and Tabulation in Python to eliminate CPU spikes and handle large-scale data efficiently.

Networking

Fixing the Single-Core Bottleneck: Scaling Linux Networking with RSS, RPS, and RFS

August 15, 2026

Is CPU0 pinning at 100% while your other cores sit idle? Learn how to use RSS, RPS, and RFS to distribute network interrupts and eliminate packet loss on Linux.

Database

PostgreSQL Indexing: When B-Tree Isn’t Enough

August 2, 2026

PostgreSQL indexing goes far beyond B-Tree. Discover how GIN, GiST, and BRIN can slash query times and save gigabytes of disk space on large-scale databases.

Networking

Stop Wasting Your 10Gbps Link: Linux Network Tuning for Real Performance

July 30, 2026

Unlock the true speed of your 10Gbps Linux servers. This guide covers Jumbo Frames, sysctl kernel buffer tuning, and NIC ring buffer optimization for maximum throughput.