DeepPoll

USB polling rate analyzer with kernel-level ETW tracing.

What is this?

DeepPoll measures your USB device's actual polling rate at the kernel level using Event Tracing for Windows (ETW). Unlike browser-based tools that measure JavaScript event timing, DeepPoll captures the raw USB interrupt timing as seen by the Windows kernel.

Quick Start

Run in PowerShell (as Administrator):

irm tools.mariusheier.com/deeppoll.ps1 | iex

This downloads and runs the DeepPoll executable with checksum verification.

Why Kernel-Level?

Browser-based polling analyzers have limitations:

• JavaScript timer resolution (~4ms minimum)
• Browser event coalescing
• OS scheduling delays
• Only sees events that reach the browser

DeepPoll uses ETW to capture USB interrupts directly from the kernel, giving you:

• Microsecond precision timing
• True interrupt distribution analysis
• Detection of missed polls and jitter
• Accurate measurement up to 8000Hz

Requirements

• Windows 10/11
• Administrator privileges (required for ETW tracing)
• .NET 8.0 Runtime (or use the self-contained exe)

Verification

Every release includes SHA256 checksums. The bootstrap script automatically verifies the download.

Manual verification:

# Download checksum
$checksum = (Invoke-WebRequest "https://github.com/MariusHeier/deeppoll/releases/latest/download/checksums.txt").Content

# Verify
Get-FileHash DeepPoll.exe -Algorithm SHA256

Building from Source

cd DeepPoll
dotnet publish -c Release -r win-x64 --self-contained -p:PublishSingleFile=true

License

MIT License - See LICENSE

Links

• Web Page
• Releases