When building infrastructure for high-traffic WordPress sites, every millisecond matters. We chose Rust over Go for Smooth Search, and here’s why.

Zero-Cost Abstractions

Rust’s compiler optimizes aggressively. There’s no garbage collector pausing your search mid-query. Memory is managed at compile time through ownership, not runtime through GC pauses.

// This costs nothing at runtime
let results: Vec<_> = products
    .iter()
    .filter(|p| p.matches(&query))
    .take(10)
    .collect();

Real-World Impact

In our benchmarks against a Go implementation:

  • 35% faster index building
  • Zero GC pauses vs Go’s 10-50ms stops
  • 40% smaller memory footprint
  • Predictable latency - no tail latency spikes

Go is great. But for search infrastructure where every millisecond compounds across thousands of requests, Rust’s zero-cost abstractions win.

Performance isn’t just a feature. It’s the foundation everything else builds on.