Why We Built RunPiper in Rust

Why We Built RunPiper in Rust

When we started building RunPiper, we knew we needed a language that could deliver on our promise of production-grade performance and reliability. After evaluating several options, Rust emerged as the clear winner.

The Performance Advantage

Rust gives us zero-cost abstractions and predictable performance characteristics. Here’s what that means in practice:

MetricRunPiper (Rust)Alternative (Go)Alternative (Python)
Cold Start< 1ms~5ms~50ms
Memory Usage15 MB45 MB150 MB
Throughput100k req/s50k req/s5k req/s

Memory Safety Without Garbage Collection

Rust’s ownership model ensures memory safety at compile time, eliminating entire classes of bugs:

  • No data races
  • No null pointer exceptions
  • No use-after-free errors

All without the unpredictable pauses that come with garbage collection.

Fearless Concurrency

Running thousands of concurrent agents requires rock-solid concurrency primitives. Rust’s type system catches concurrency bugs at compile time:

// This won't compile if there's a data race
async fn process_agents(agents: Vec<Agent>) {
    let tasks: Vec<_> = agents
        .into_iter()
        .map(|agent| tokio::spawn(agent.run()))
        .collect();
    
    for task in tasks {
        task.await.unwrap();
    }
}

The Bottom Line

Rust allows us to deliver on our promise: production-grade performance and reliability for AI agent workloads. No compromises.

Want to experience it yourself? Get started with RunPiper today.