Articles tagged "performance"

linux sysadmin process-management devops monitoring
15 min readIntermediate

Linux Process Management 2026: ps, top, htop, btop, kill, nice, and OOM Killer

Linux process management guide 2026: ps aux, top, htop, btop/bpytop, kill signals, nice/renice, lsof, strace, /proc filesystem, zombie processes, OOM killer, and systemd-cgtop for cgroups.

postgresql databases performance sql indexes
10 min readIntermediate

PostgreSQL EXPLAIN ANALYZE: Fix Slow Queries with Proper Indexes (2026)

Master PostgreSQL EXPLAIN ANALYZE in 2026. Read query plans, create B-tree, partial, GIN, and expression indexes. Real case study: 30-second query reduced to 50ms step by step.

Python sqlalchemy postgresql performance database
15 min readIntermediate

SQLAlchemy Bulk Insert 2026: The Fastest Methods Compared (40x to 240x Speedup)

SQLAlchemy bulk insert performance guide 2026. ORM add_all vs bulk_save_objects vs Core execute_many (40x) vs PostgreSQL COPY via psycopg2 (240x). Real benchmarks with 100K rows. Async support included.

performance loop javascript
1 min readBeginner

Javascript: Why you should use for() to iterate

If in your code you are using Array.forEach, check this blog post about the performance of javascript using for(). Learn how to improve the performance of the forEach in javascript.

javascript html performance optimization href
2 min readBeginner

JavaScript Links: # vs javascript:void(0)

In this article we explain the differences of using "#" or "javascript:void(0)" in the href attribute. We warn you that for modern javascript you should avoid using this values in the href since it's a bad practice.

postgresql database performance
4 min readIntermediate

PostgreSQL Configuration Tuning

Learn how to tune PostgreSQL for optimal performance. Configure shared_buffers, work_mem, effective_cache_size and other key parameters.