rust/src/test/bench/task-perf-spawnalot.rs

fn f(&&n: uint) {
    let mut i = 0u;
    while i < n {
        task::try(|| g() );
        i += 1u;
    }
}

fn g() { }

fn main(++args: ~[~str]) {
    let args = if os::getenv(~"RUST_BENCH").is_some() {
        ~[~"", ~"400"]
    } else if args.len() <= 1u {
        ~[~"", ~"10"]
    } else {
        args
    };
    let n = uint::from_str(args[1]).get();
    let mut i = 0u;
    while i < n { task::spawn(|| f(n) ); i += 1u; }
}