Golden Rules for Linux Performance Tuning: Addressing CPU, Memory, and I/O Bottlenecks
Introduction Starting with a painful downtime incident. The response time of the online business system skyrocketed from 200ms to 8 seconds, yet the CPU usage (65%), memory (30% free), and disk I/O appeared “normal”. The core issue: judging system health based on a single metric ignores the complexity of Linux performance, which is a complex … Read more