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cm-dashboard/BENCHMARK.md
Christoffer Martinsson 8a36472a3d Implement real-time process monitoring and fix UI hardcoded data 
This commit addresses several key issues identified during development:

Major Changes:
- Replace hardcoded top CPU/RAM process display with real system data
- Add intelligent process monitoring to CpuCollector using ps command
- Fix disk metrics permission issues in systemd collector
- Optimize service collection to focus on status, memory, and disk only
- Update dashboard widgets to display live process information

Process Monitoring Implementation:
- Added collect_top_cpu_process() and collect_top_ram_process() methods
- Implemented ps-based monitoring with accurate CPU percentages
- Added filtering to prevent self-monitoring artifacts (ps commands)
- Enhanced error handling and validation for process data
- Dashboard now shows realistic values like "claude (PID 2974) 11.0%"

Service Collection Optimization:
- Removed CPU monitoring from systemd collector for efficiency
- Enhanced service directory permission error logging
- Simplified services widget to show essential metrics only
- Fixed service-to-directory mapping accuracy

UI and Dashboard Improvements:
- Reorganized dashboard layout with btop-inspired multi-panel design
- Updated system panel to include real top CPU/RAM process display
- Enhanced widget formatting and data presentation
- Removed placeholder/hardcoded data throughout the interface

Technical Details:
- Updated agent/src/collectors/cpu.rs with process monitoring
- Modified dashboard/src/ui/mod.rs for real-time process display
- Enhanced systemd collector error handling and disk metrics
- Updated CLAUDE.md documentation with implementation details
2025-10-16 23:55:05 +02:00

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CM Dashboard Agent Performance Benchmark

Test Environment

  • Host: srv01
  • Rust: release build with optimizations
  • Test date: 2025-10-16
  • Collection interval: 5 seconds (realtime for all collectors)

Benchmark Methodology

  1. Set all collectors to realtime (5s interval)
  2. Test each collector individually
  3. Measure CPU usage with ps aux after 10 seconds
  4. Record collection time from debug logs

Baseline - All Collectors Enabled

Results

  • CPU Usage: 74.6%
  • Total Metrics: ~80 (5 CPU + 6 Memory + 3 Disk + ~66 Systemd)
  • Collection Time: ~1350ms (dominated by systemd collector)

Individual Collector Tests

CPU Collector Only

  • CPU Usage: TBD%
  • Metrics Count: TBD
  • Collection Time: TBD ms
  • Utilities Used: /proc/loadavg, /sys/class/thermal/thermal_zone*/temp, /proc/cpuinfo

Memory Collector Only

  • CPU Usage: TBD%
  • Metrics Count: TBD
  • Collection Time: TBD ms
  • Utilities Used: /proc/meminfo

Disk Collector Only

  • CPU Usage: TBD%
  • Metrics Count: TBD
  • Collection Time: TBD ms
  • Utilities Used: du -s /tmp

Systemd Collector Only

  • CPU Usage: TBD%
  • Metrics Count: TBD
  • Collection Time: TBD ms
  • Utilities Used: systemctl list-units, systemctl show <service>, du -s <service-dir>

Analysis

Performance Bottlenecks

  • TBD

Recommendations

  • TBD

Optimal Cache Intervals

Based on performance impact:

  • TBD