WhySlow Features
Intelligent system monitoring that helps you understand why your Mac feels slow
Real-Time System Performance Monitoring
Live CPU, Memory, and Disk Usage Analysis
Continuously monitors system resource consumption with intelligent scoring
Smart Issue Detection
Automatically identifies and scores performance bottlenecks using weighted impact calculations
System-Aware Thresholds
Adapts monitoring sensitivity based on your Mac's hardware (CPU cores, RAM, SSD/HDD)
Intelligent Process Analysis
Impact Scoring System
Ranks processes by their actual impact on system performance (0-100 scale)
Resource-Specific Categorization
Identifies whether issues are CPU, memory, or disk-related with color-coded badges
Context-Aware Detection
Prioritizes frontmost applications and adjusts for system load conditions
Comprehensive Process Information
Detailed Process Inspection
View full paths, start times, parent-child relationships, and process hierarchies
Child Process Tracking
See related processes and their resource usage patterns
Process Name Beautification
Clean, readable process names with browser tab detection
Historical Usage Tracking
Usage Over Time Graphs
Visualize system performance trends with interactive charts
Persistent Data Storage
Historical data storage for long-term analysis
Performance Timeline
Track when and why your system experiences slowdowns
Native macOS Integration
Menu Bar Status Indicator
Quick system status at a glance with dynamic icons
Native Design
Native macOS design with folder-style tabs and system colors
Efficient Background Monitoring
Low-overhead sampling that doesn't impact performance
Advanced Monitoring Capabilities
Multi-Core CPU Awareness
Scales thresholds based on your Mac's processor configuration
Memory Pressure Detection
Distinguishes between memory usage and actual memory pressure
Storage Type Detection
Different thresholds for SSD vs HDD performance analysis
System Load Adjustment
Higher impact scoring when system is under stress
User Interface Features
Sortable Data Views
Sort by name, CPU, memory, disk usage, or impact score
Intelligent Activity Monitor Replacement
WhySlow serves as an intelligent Activity Monitor replacement that not only shows what's running but helps users understand why their Mac feels slow by providing context, impact scoring, and actionable insights about system performance.