System Monitoring And Performance Diagnosis

  1. 1.The "It's Slow" Starting Point: A Resource-First Diagnostic Mindset
  2. 2.CPU: Reading Load, Utilization & Run Queues
  3. 3.Memory: Used, Free, Cached & the "Available" Metric
  4. 4.Disk I/O: IOPS, Throughput & Latency
  5. 5.Disk Space: Filling Up, and Where It Actually Went
  6. 6.Network as a Performance Symptom
  7. 7.Reading Monitoring Dashboards: Grafana & Cloud Console Metrics at a Glance
  8. 8.Process-Level Diagnosis: Finding the Specific Culprit
  9. 9.Sustained vs. Transient Load: When a Spike Isn't a Problem
  10. 10.Capstone — Triaging Three Real Performance Tickets