🍓 stream_dash (v23.0-rs)
The evolution of stream_top. A high-performance, Rust-based diagnostic dashboard for Raspberry Pi power users. While the original Bash version focused on raw numbers, stream_dash introduces Real-Time History Graphs to visualize hardware trends over time.
🔍 Why stream_dash? Standard monitoring tools (like htop or btop) often miss what matters for video streaming: DMA/CMA buffer states, VPU voltages, and H.264 clock speeds.
stream_dash is written in Rust for minimal CPU footprint and provides:
Visual History: 42-point sparkline graphs for CPU and Temperature.
Stacked Memory Graphs: Visualizing Active vs. Reserved vs. Total memory for both RAM and CMA.
Deep Hardware Insight: Real-time throttling status and DMA-buffer breakdown.
Systemd Integration: Integrated, scrollable logs for your stream.service.
📸 Visualization Logic Triple-Stacked Bars (RAM & CMA) We use a unique layered visualization to show memory health at a glance:
█ Active (Bright): Data actually in use (App code or live video frames).
▓ Reserved/Cached (Dim): System-managed buffers (Linux Cache or CMA pre-allocations).
░ Total Capacity (Dark): Your hardware ceiling.
🛠 Installation
- Requirements Ensure you have the Rust toolchain installed:
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
- Build & Run
git clone https://github.com/axeljerabek/stream_dash.git
cd stream_dash
cargo build --release
(On a Rpi Zero or Zero2W or other low-RAM machines try: cargo build --release -j 1 )
sudo ./target/release/stream_dash
(Or install with: "install -s target/release/stream_dash /usr/local/bin/"
Note: sudo is required to read the kernel's DMA debug interface.
🎮 Interactive Controls
- / - : Adjust Refresh Speed (100ms to 5s).
, / . : Adjust Log Depth (Show more/fewer lines).
q : Exit.
🔗 History This project is the spiritual successor to stream_top. While stream_top remains a great lightweight Bash alternative, stream_dash is recommended for users who need to see "the story" behind the numbers through historical graphing.