Xyhshell GitHub avatar

performance-monitor-osd

Xyhshell

A lightweight, customizable real-time hardware monitoring overlay for Windows that displays CPU, GPU, and FPS data using PyQt5, with support for 1% Low, frame time analysis, and multiple themes.

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Last updated

2026-07-28

AI repository intelligence
FR-AI / ANALYSIS

Why it is worth attention

It provides an open-source, low-overhead alternative to commercial tools like MSI Afterburner, with DLSS-aware frame analysis and flexible collection via DXGI or GDI.

Who it is for

  • Gamers wanting real-time performance metrics
  • Performance tuners and overclockers
  • Python developers building hardware monitoring tools
  • Benchmarkers analyzing frame time stability

Use cases

  • Monitoring CPU and GPU metrics during gaming sessions
  • Identifying performance bottlenecks with 1% Low and frame time variation
  • Evaluating DLSS frame generation impact on visual smoothness
  • Customizing an on-screen display for live streaming or video capture

Strengths

  • CPU usage below 5% with adjustable update intervals
  • 13+ color themes and fully customizable display items
  • Supports both DXGI and GDI capture methods for broad compatibility
  • Provides detailed frame time statistics including 1% Low, 0.1% Low, and coefficient of variation

Considerations

  • Windows 10/11 only
  • Requires LibreHardwareMonitor DLL and administrator privileges for sensor access
  • May experience compatibility issues with certain games or antivirus software

README quick start

使用指南

Description

performance-monitor-osd fps cpu gpu

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