Function lazy_thread_instantiate

benches/thread_eager_init.rs:66–70

When wasmtime first runs a function on a thread, it needs to initialize some thread-local resources and install signal handlers. This benchmark spawns a new thread, and returns the duration it took to execute the first function call made on that thread.

(engine: Engine, module: Module)

/// spawns a new thread, and returns the duration it took to execute the first
/// function call made on that thread.
fn lazy_thread_instantiate(engine: Engine, module: Module) -> Duration {
    thread::spawn(move || duration_of_call(&engine, &module))
        .join()
        .expect("thread joins")
}
/// This benchmark spawns a new thread, and records the duration to eagerly
/// initializes the thread local resources. It then creates a store and
/// instance, and records the duration it took to execute the first function