Performance Tuning Guide 1. Introduction 2. Performance Monitoring Tools Expand section "2. Performance Monitoring Tools" Collapse section "2. Performance Monitoring Tools" 2.1. /proc 2.2. GNOME System Monitor 2.3. Built-in Command-Line Tools Expand section "2.3. Built-in Command-Line Tools" Collapse section "2.3. Built-in Command-Line Tools" 2.3.1. top 2.3.2. ps 2.3.3. Virtual Memory Statistics (