sqm‑autorate‑rust is a Rust re‑implementation of the original sqm‑autorate tool, which dynamically adjusts CAKE SQM bandwidth settings by measuring traffic load and latency – ideal for variable DOCIS/cable or LTE/wireless links where capacity fluctuates. This port preserves the original’s adaptive control logic while leveraging Rust’s type safety, performance, and concurrency primitives to deliver a more robust, maintainable codebase.
- Adaptive rate control: continuously measures one‑way delay baselines and traffic load to tune both download and upload shaping rates in realtime .
- Multiple measurement types: prefers ICMP timestamps by default, but also supports ICMP echo requests as a fallback for networks where timestamps are blocked
- Concurrent architecture: separates packet sending, receiving, baselining, reflector reselection and rate‑controller loops into dedicated threads for maximum responsiveness .
- Configurable via environment or UCI: reads settings from environment variables or OpenWRT UCI, with sensible defaults and type‑safe parsing .
- Minimal dependencies: relies on Rust crates only (anyhow, socket2, neli, rustix), no external scripts .
You can install sqm‑autorate‑rust in two ways:
-
Ensure you have the Rust toolchain (1.70+), Cargo, and
libnlheaders installed on your Linux host. -
Clone and build:
git clone https://github.com/Lochnair/sqm-autorate-rust.git cd sqm-autorate-rust cargo build --release -
The optimized binary is at
target/release/sqm-autorate-rust.
You can also build an OpenWrt package to install in your images with the SDK:
-
Prepare the OpenWrt SDK
# Download and extract the matching SDK for your target platform tar xJf openwrt-sdk-*.tar.xz cd openwrt-sdk-*
-
Add the
openwrt-feedsrepository# Add the feed to feeds.conf.default echo 'src-link lochnair https://github.com/Lochnair/openwrt-feeds.git' >> feeds.conf.default ./scripts/feeds update lochnair ./scripts/feeds install sqm-autorate-rust
-
Configure and build the package
make menuconfig # navigate to Network → sqm-autorate-rust, enable it make package/sqm-autorate-rust/{clean,compile} V=s -
Install on your device
# Copy the generated .ipk from bin/packages/... to your router opkg install sqm-autorate-rust_*.ipk