# Performance Tuning Guide

Advanced strategies for maximizing macOS Resource Optimizer performance.

## Tuning Philosophy

Effective tuning balances three factors:

1. **Performance**: System speed and responsiveness
2. **Stability**: System reliability and safety
3. **Efficiency**: Resource utilization

## CPU Performance Tuning

### Understanding CPU Metrics

```json
{
  "usage_percent": 45.2,
  "temperature_celsius": 65.5,
  "frequency_ghz": 3.2,
  "thermal_headroom": "good",
  "p_cores_active": 4,
  "e_cores_active": 8
}
```

### Optimization Strategies

#### Conservative (Safety First)

```json
{
  "cpu": {
    "frequency_scaling": "enabled",
    "max_frequency": 2.4,
    "thermal_threshold": 85,
    "processes_managed": 1
  }
}
```

Use when:
- Running critical applications
- On battery power
- System feels unstable

#### Balanced (Recommended)

```json
{
  "cpu": {
    "frequency_scaling": "adaptive",
    "max_frequency": 3.2,
    "thermal_threshold": 80,
    "processes_managed": 3
  }
}
```

Use when:
- Normal daily use
- Mixed workload
- Default setting

#### Aggressive (Performance)

```json
{
  "cpu": {
    "frequency_scaling": "disabled",
    "max_frequency": 3.5,
    "thermal_threshold": 75,
    "processes_managed": 5
  }
}
```

Use when:
- Heavy computing tasks
- Gaming sessions
- Plugin development

### CPU Tuning Commands

```bash
# Check current CPU state
/macos-resource-optimizer:1-analyze --category cpu

# Apply conservative CPU tuning
/macos-resource-optimizer:2-optimize --component cpu --strategy conservative

# Apply aggressive tuning
/macos-resource-optimizer:2-optimize --component cpu --strategy aggressive

# Monitor CPU performance
/macos-resource-optimizer:3-monitor --component cpu --interval 1
```

## Memory Performance Tuning

### Memory Optimization Levels

#### Level 1: Light (2-5 minutes)

```json
{
  "memory": {
    "cache_clear": "partial",
    "compression": "enabled",
    "swap_optimize": false
  }
}
```

Effects:
- 2-3% memory freed
- Minimal impact
- Safe for all systems

#### Level 2: Standard (5-10 minutes)

```json
{
  "memory": {
    "cache_clear": "full",
    "compression": "aggressive",
    "swap_optimize": true
  }
}
```

Effects:
- 8-12% memory freed
- Moderate impact
- Good performance gain

#### Level 3: Deep (10-30 minutes)

```json
{
  "memory": {
    "cache_clear": "deep",
    "compression": "extreme",
    "swap_optimize": "aggressive",
    "garbage_collect": true
  }
}
```

Effects:
- 15-25% memory freed
- Significant system usage
- Best results but slower

### Memory Tuning Workflow

```bash
# 1. Analyze memory usage
/macos-resource-optimizer:1-analyze --category memory

# 2. Identify problem applications
/macos-resource-optimizer:1-analyze --detailed --category memory

# 3. Apply optimization
/macos-resource-optimizer:2-optimize --component memory --strategy balanced

# 4. Monitor improvements
/macos-resource-optimizer:3-monitor --component memory

# 5. Generate report
/macos-resource-optimizer:4-report --type comparison
```

## Disk Performance Tuning

### Disk Space Optimization

#### Phase 1: Quick Cleanup

```bash
# Remove temporary files
/macos-resource-optimizer:2-optimize --component disk --strategy conservative
```

Frees: 500MB - 1GB

#### Phase 2: Cache Cleanup

```bash
# Clear application caches
/macos-resource-optimizer:2-optimize --component disk --strategy balanced
```

Frees: 2-5GB

#### Phase 3: Deep Clean

```bash
# Deep cleanup (be careful!)
/macos-resource-optimizer:2-optimize --component disk --strategy aggressive
```

Frees: 10-20GB

### Disk I/O Optimization

#### Monitor I/O Performance

```bash
/macos-resource-optimizer:1-analyze --category disk --detailed
```

Look for:
- High read/write times
- Excessive I/O wait
- Fragmentation levels

#### Reduce I/O Bottlenecks

```bash
# Optimize disk I/O
/macos-resource-optimizer:2-optimize --component disk
```

Effects:
- Faster app launches
- Smoother file operations
- Better overall responsiveness

### Disk Maintenance Schedule

```bash
# Daily
/macos-resource-optimizer:2-optimize --component disk --strategy conservative

# Weekly
/macos-resource-optimizer:2-optimize --component disk --strategy balanced

# Monthly
/macos-resource-optimizer:2-optimize --component disk --strategy aggressive
```

## Thermal Management Tuning

### Understanding Temperatures

```
Optimal:   < 60°C
Good:      60-75°C
Fair:      75-85°C
Critical:  > 85°C
```

### Temperature Optimization

```bash
# Check current temperatures
/macos-resource-optimizer:1-analyze --category thermal

# Conservative cooling
/macos-resource-optimizer:2-optimize --component thermal --strategy conservative

# Aggressive cooling
/macos-resource-optimizer:2-optimize --component thermal --strategy aggressive
```

### Thermal Tuning by Scenario

#### Gaming

```bash
/macos-resource-optimizer:2-optimize --strategy aggressive --component thermal
```

Settings:
- Higher temperature threshold (85°C)
- Faster fan ramp-up
- More aggressive cooling

#### Development

```bash
/macos-resource-optimizer:2-optimize --strategy balanced --component thermal
```

Settings:
- Balanced temperatures (80°C)
- Moderate fan speed
- Good performance/cooling

#### Office Work

```bash
/macos-resource-optimizer:2-optimize --strategy conservative --component thermal
```

Settings:
- Lower temperature target (75°C)
- Quieter operation
- Extended equipment life

## Battery Life Optimization

### Battery Optimization Strategies

#### Light Use (Everyday)

```bash
/macos-resource-optimizer:2-optimize --component battery --strategy conservative
```

Expected improvement: 8-12% more battery life

#### Moderate Use (Work)

```bash
/macos-resource-optimizer:2-optimize --component battery --strategy balanced
```

Expected improvement: 5-10% more battery life

#### Gaming/Heavy Use

```bash
/macos-resource-optimizer:2-optimize --component battery --strategy aggressive
```

Expected improvement: 15-20% more battery life (with reduced performance)

### Battery Monitoring

```bash
# Check battery health
/macos-resource-optimizer:1-analyze --category battery

# Monitor battery over time
/macos-resource-optimizer:3-monitor --component battery --duration 3600

# Generate battery report
/macos-resource-optimizer:4-report --component battery --period week
```

## Network Performance Tuning

### Network Optimization

```bash
# Analyze network performance
/macos-resource-optimizer:1-analyze --category network

# Apply network optimizations
/macos-resource-optimizer:2-optimize --component network

# Monitor network
/macos-resource-optimizer:3-monitor --component network
```

### DNS Optimization

```json
{
  "network": {
    "dns_optimization": true,
    "dns_server": "8.8.8.8",
    "connection_pooling": true,
    "bandwidth_throttling": false
  }
}
```

Effects:
- Faster DNS resolution
- Better page load times
- Improved responsiveness

## Custom Configuration Tuning

### Creating a Performance Profile

```json
{
  "profile": "gaming",
  "cpu": {
    "strategy": "aggressive",
    "max_frequency": 3.5,
    "thermal_threshold": 75
  },
  "memory": {
    "strategy": "balanced",
    "compression": "enabled"
  },
  "thermal": {
    "strategy": "aggressive",
    "fan_mode": "active"
  },
  "network": {
    "strategy": "balanced",
    "connection_pooling": true
  }
}
```

Load custom profile:

```bash
/macos-resource-optimizer:0-init --profile gaming
/macos-resource-optimizer:2-optimize --use-profile gaming
```

### Creating Profiles for Different Use Cases

#### Work Profile

```bash
# Office work optimization
/macos-resource-optimizer:2-optimize --strategy balanced
```

#### Creative Profile

```bash
# Video/audio editing optimization
/macos-resource-optimizer:2-optimize --strategy aggressive
```

#### Server Profile

```bash
# Background services optimization
/macos-resource-optimizer:2-optimize --strategy conservative
```

## Monitoring and Measurement

### Baseline Establishment

```bash
# Create initial baseline
/macos-resource-optimizer:1-analyze > baseline.json

# Apply optimizations
/macos-resource-optimizer:2-optimize

# Compare results
/macos-resource-optimizer:1-analyze > after.json
```

### Performance Comparison

```bash
# Generate comparison report
/macos-resource-optimizer:4-report --type comparison
```

Look for:
- CPU improvement: 5-15%
- Memory improvement: 10-20%
- Disk improvement: 15-30%
- Battery improvement: 8-12%

### Long-term Monitoring

```bash
# Weekly monitoring
/macos-resource-optimizer:3-monitor --duration 604800 --interval 3600

# Generate weekly report
/macos-resource-optimizer:4-report --period week
```

## Troubleshooting Performance Issues

### System Becomes Slower After Optimization

1. Check optimization impact: `/macos-resource-optimizer:1-analyze`
2. Revert to conservative: `/macos-resource-optimizer:2-optimize --strategy conservative`
3. Gradually increase aggressiveness

### High Temperature Despite Optimization

1. Check thermal status: `/macos-resource-optimizer:1-analyze --category thermal`
2. Verify cooling: Check fan speed and operation
3. Apply thermal optimization: `/macos-resource-optimizer:2-optimize --component thermal --strategy aggressive`

### Memory Still High After Optimization

1. Identify memory hogs: `/macos-resource-optimizer:1-analyze --category memory --detailed`
2. Close unused applications
3. Apply memory optimization: `/macos-resource-optimizer:2-optimize --component memory --strategy aggressive`

## Best Practices

1. **Measure First**: Always baseline before optimization
2. **Change One Thing**: Optimize one component at a time
3. **Monitor Results**: Track improvements with monitoring
4. **Be Conservative**: Start with conservative strategy
5. **Document Changes**: Keep records of modifications
6. **Review Regularly**: Check performance weekly

## Performance Tuning Checklist

- [ ] Establish baseline metrics
- [ ] Identify problem areas
- [ ] Choose optimization strategy
- [ ] Apply optimizations
- [ ] Monitor for improvements
- [ ] Adjust as needed
- [ ] Document results
- [ ] Schedule regular reviews

## Next Steps

- Implement tuning strategy
- Monitor improvements
- Adjust based on results
- Share feedback on effectiveness

See [Troubleshooting](/guides/troubleshooting) for problem solving.
