No matter how fast you run() you'll never escape your dependencies.
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.

Throttle Documentation Build Status

A simple, configurable throttle for slowing down code. When do you actually want to slow down code? To avoid resource contention and browning out downstream services.

// simple throttle configured for 10 TPS
let mut throttle = Throttle::new_tps_throttle(10.0);

let iteration_start = Instant::now();

// the first one is free!

// the first iteration is free, subsequent iterations
// will be slowed down to a rate of 10 TPS, or one iteration
// every 100 milliseconds
for _i in 0..10 {

println!("elapsed time: {:?}", iteration_start.elapsed());

assert_eq!(iteration_start.elapsed().as_secs() == 1, true);

Throttle is based on a functional interface, so it can go beyond constant tps rate limiting to facilitating variable-rate throttling based on conditions entirely up to your program.

let mut throttle = Throttle::new_variable_throttle(
    |iteration: u32, _| Duration::from_millis(arg));

let iteration_start = Instant::now();

// the first iteration is free, subsequent iterations
// will be slowed down
for i in 0..5 {
    throttle.acquire(i * 100);

assert_eq!(iteration_start.elapsed().as_secs() == 1, true);


I want you to be able to use this software regardless of who you may be, what you are working on, or the environment in which you are working on it - I hope you'll use it for good and not evil! To this end, Throttle is licensed under the 2-clause BSD license, with other licenses available by request. Happy coding!