# Technical Document Extraction: System Performance Metrics
## Axis Labels and Titles
- **X-Axis**: Time (08-26 07:00 to 08-26 22:00)
- **Y-Axis**: Value (no explicit units specified)
## Line Graphs and Labels
1. **Cluster CPU Usage (Alarm KPI)**
- **Color**: Red
- **Trend**:
- Multiple sharp spikes observed at irregular intervals.
- Notable peaks at ~08:26 10:00, 13:00, 16:00, and 22:00.
- Baseline activity with intermittent high-load events.
2. **Network Traffic of VM1 (Root Cause)**
- **Color**: Pink
- **Trend**:
- Moderate, irregular spikes.
- Peaks at ~08-26 09:00, 12:00, 15:00, and 21:00.
- Lower activity compared to Cluster CPU Usage.
3. **Network Traffic of VM2**
- **Color**: Blue
- **Trend**:
- Gradual increase in activity over time.
- Sustained elevated levels starting ~08-26 18:00.
- No sharp spikes; steady growth observed.
4. **Network Traffic of VM3**
- **Color**: Dark Blue
- **Trend**:
- Periodic, block-like spikes (rectangular patterns).
- Peaks at ~08-26 08:00, 11:00, 14:00, 17:00, and 20:00.
- Consistent interval between spikes (~3-hour cycle).
5. **Network Traffic of VM4**
- **Color**: Light Blue
- **Trend**:
- Intermittent, short-duration spikes.
- Notable activity at ~08-26 07:30, 10:30, 13:30, 16:30, and 22:00.
- Lower magnitude compared to VM3.
## Cross-Reference Validation
- **Color-Label Matching**:
- Red = Cluster CPU Usage (Alarm KPI)
- Pink = VM1 Network Traffic
- Blue = VM2 Network Traffic
- Dark Blue = VM3 Network Traffic
- Light Blue = VM4 Network Traffic
- **Time Markers**: Hourly intervals (07:00, 10:00, 13:00, 16:00, 19:00, 22:00) align with observed trend patterns.
## Observations
- **Correlation**:
- Cluster CPU Usage spikes (red) often coincide with increased network traffic in VM1 (pink) and VM3 (dark blue).
- VM2 (blue) shows sustained traffic growth, potentially unrelated to Cluster CPU spikes.
- **Anomalies**:
- VM4 (light blue) exhibits erratic, low-magnitude spikes with no clear pattern.
- VM3 (dark blue) demonstrates a regular, block-like traffic pattern, suggesting scheduled or automated processes.
## Notes
- No explicit units provided for the Y-axis ("Value").
- No legend present; labels are directly annotated on the left of each line.
- Time format uses 24-hour notation with date prefix (08-26).
