ConsoleGpuViewer (Inspired on nvsharptop)

GPT-5 Devs - GPU Viewer

Note: This is based on the chat we had during the .NET & AI Community StandUp show with the author here (https://www.youtube.com/watch?v=ptdNWGj8CN8) The original GPU viewer is this one: https://github.com/tjwald/nvsharptop The full list of resources are here: https://learn.microsoft.com/collections/yjwzhet31ez28w

This small console app queries local NVIDIA GPUs via nvidia-smi and renders a live terminal UI using Spectre.Console.

Quick start

dotnet run --project ConsoleGpuViewer\ConsoleGpuViewer.csproj -- --sample-interval 0.1 --display-interval 0.5 --cleanup-screen true

Publish (single-file Windows x64)

dotnet publish ConsoleGpuViewer\ConsoleGpuViewer.csproj -c Release -r win-x64 --self-contained false /p:PublishSingleFile=true

Interactive controls

Press S to start / pause
Press S or Enter to start / pause
Press Q to quit
Press H to switch to Horizontal view
Press V to switch to Vertical view
Press W to toggle Star Wars Mode (animated Star Wars intro crawl of GPU stats)
Start-screen interactive options
Before pressing S you can change some options directly on the welcome/start screen. These mirror CLI flags and will be applied when monitoring starts:
- C toggle compact layout (--compact)
- A toggle animate mode (--animate)
- B cycle background glyph (--bg-glyph)
- P toggle pixel-graded mode (--pixel)
- Left / Right arrows decrease / increase --sample-interval by 0.1s
- Down / Up arrows decrease / increase --display-interval by 0.5s

You can still pass all the same options on the command line; the start screen simply provides a quick interactive way to change them before starting.

Default view

The default view is now Vertical. Toggle to Horizontal on the welcome screen before starting or while running using H/V.

Recent visual updates

Continuous vertical bar: the Vertical view now renders per-timestamp columns adjacent to each other (no extra spacer), producing a continuous vertical history bar. This makes it easier to visually read utilization/memory trends across time.
Y-axis labels on every row: the percent labels on the Y axis now appear on every row (previously they appeared on every other row). The label width is 5 characters (e.g. 100%) to align the chart grid.
Tick density: because columns are now 1-character wide in the Vertical view, timestamp labels along the X axis are condensed. The renderer attempts to center short time labels under groups; if you prefer more readable timestamps, increase the console width or use a larger display-interval so fewer groups are shown.

Options of interest

--sample-interval <seconds> : sampling frequency (default 1.0) -- --display-interval <seconds> : how often the UI aggregates samples and refreshes (default 0.5)
--compact : use a denser compact layout with smaller spacers between timestamp groups
--animate : render at the sample rate (smooth scrolling) instead of the display interval
--bar-char <char> : choose the character used for solid bars (default █)
--util-high <int> : utilization percentage threshold that renders red (default 90)
--util-warn <int> : utilization percentage threshold that renders yellow (default 70)
--bg-glyph <space|dot|shade> : background glyph when a cell is empty (default shade)
--pixel <true|false> : enable pixel-graded bar mode using Unicode fractional blocks for partial-row fills

Default vertical view settings

Example with new options

dotnet run --project ConsoleGpuViewer\ConsoleGpuViewer.csproj -- --sample-interval 0.2 --display-interval 1 --bg-glyph dot --pixel true

Notes