Netto is an eBPF-based network monitoring tool for Linux that measures the CPU cost of the Linux network stack.
- Measurement of the on-CPU time of the main networking entry points in kernel
- Breakdown of the
NET_RX_SOFTIRQentry point into the basic network functions by stack trace-based profiling of the kernel - Low overhead
- Real time operation
- Minimum Linux version supported: 5.11 (
BPF_MAP_TYPE_TASK_STORAGE)
To compile the tool you'll need:
- Latest Rust toolchain (stable or nightly)
- wasm_pack (for the web frontend)
Compile and run with:
cargo xtask run [--release]
Netto exposes the real time results as a Wasm-powered web page accessible on http://localhost:8080
| Folder | Contents |
|---|---|
images |
Images used on this README |
main |
Main Rust binary crate |
main/src/bpf |
BPF-C programs |
metrics-common |
Bridge Rust library crate for main and web-frontend |
web-frontend |
Rust WebAssembly frontend |
www |
Static files for the web frontend |
xtask |
Utility binary crate for managing coordination between the other crates |