Quick Notes90 words
Infrastructure performance indicators — quick notes
Infrastructure indicators — quick notes
| Indicator | Watch |
|---|---|
| CPU | Saturation — and low CPU with high latency |
| Memory | Growth without plateau (leak); paging |
| Disk | IOPS and queue depth |
| Network | Throughput, retransmits, connection exhaustion |
- Ask three things per resource: utilisation, saturation (queue), errors.
- Queueing starts before saturation — 60% with a deep queue is a bottleneck.
- Low CPU + high latency = waiting, not computing.
- Infrastructure explains; alert on user-facing signals.