Hey! wanted to share a system monitoring tool I built in Go.

Technical Highlights

Real-time Process Management: Uses gopsutil to get accurate system metrics, with proper handling of CPU percentages relative to total system usage for accurate per-process CPU reporting

Efficient UI Updates: Implements smart diffing to only update UI elements that have changed, reducing unnecessary redraws

Memory-efficient Process Filtering: Uses streaming filters instead of storing complete process lists in memory

Custom Terminal UI Patterns: Built with tview and tcell, showcasing:

Modal dialogs with proper keyboard navigation

Scrollable detail views

Dynamic color support

Flexible layouts using Flex containers

System Programming Concepts:

Process management and monitoring

CPU usage calculation and normalization

Memory tracking (RSS/VMS)

Thread management

Go Programming Patterns:

Concurrent updates using goroutines

Elegant error handling

Interface-based design

Clean separation of concerns

UI/UX Patterns:

Event-driven architecture

Responsive (depends on your hardware and config file) terminal UI design

User input handling

The code is well-documented and it’s especially useful for developers interested in:

Systems programming

Terminal UI development

Performance monitoring

Go concurrent programming

Repo link: https://github.com/drclcomputers/SysPulse

Let me know what you think, what would you modify, add, rewrite, etc!