Posted inLinux
Hunting Down CPU-Hogging “Culprits” on Linux: Mastering perf and Flame Graphs
A detailed guide on using perf on Linux for CPU profiling and Flame Graph generation. Learn how to pinpoint slow functions with minimal overhead.
Posted inVirtualization
Installing Waydroid on Ubuntu: Run Android as Smoothly as a Native App with Containers
Forget heavy Android emulators. This guide helps you install Waydroid on Ubuntu—a lightweight, smooth, and resource-efficient solution via LXC containers.
Posted inDevelopment
Practical Redis Caching: From DB Crashes to Handling Millions of Requests
Key takeaways from 6 months of operating Redis in production. Detailed guide on reducing Database load from 95% to 15% using Cache-Aside, Write-Through, and Jitter TTL techniques.
Posted inLinux
How to Use strace to Debug Applications on Linux: Tracing System Calls and Finding Root Causes Effectively
strace lets you trace every system call a process makes on Linux — from file opens and network connections to lock waits — without needing source code or recompiling. This guide covers practical strace usage for debugging permission errors, missing files, hanging services, and I/O bottlenecks.
Posted inDevelopment
Goodbye Node.js? A Guide to Speeding Up JavaScript Projects 10x with Bun.js
Is it time to say goodbye to Node.js? A detailed guide on using Bun.js to significantly speed up JavaScript/TypeScript development. Learn how to install, manage packages, and use the ultra-fast test runner.
Posted inLinux
OOM Killer: Why Linux Kills Your MySQL and How to Protect It
When a Linux application shuts down unexpectedly, the OOM Killer is often to blame. Learn how to read dmesg logs, understand the oom_score metric, and protect MySQL and Redis from being terminated by the OS.
Posted inPython
Celery & Redis: Background Task Solutions to Speed Up Python Applications
Significantly speed up Python applications by offloading heavy tasks to Celery and Redis. A detailed guide from setup to professional worker management.
Posted inLinux
Boosting Linux Server I/O Performance: noatime and tuned profile Tips
A quick guide to optimizing Linux I/O performance by configuring noatime and using tuned profiles to reduce system latency.
Posted inDatabase
PostgreSQL Indexing: Don’t Just Use B-Tree for Millions of Rows
Stop overusing B-Tree for everything. This article shares practical experience on using GIN for JSONB, BRIN for Big Data, and how to create indexes without locking your production database.
Posted inVirtualization
Optimizing KVM/Proxmox Resources: Stop VMs from Draining Your Hardware
Managing KVM/Proxmox resources effectively is easy when you know how. Guide on optimizing CPU Type, configuring VirtIO SCSI, and RAM Ballooning tips to prevent bottlenecks.