115 lines
3.7 KiB
Rust
115 lines
3.7 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// A port of the simplistic benchmark from
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//
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// http://github.com/PaulKeeble/ScalaVErlangAgents
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//
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// I *think* it's the same, more or less.
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use std::sync::mpsc::{channel, Sender, Receiver};
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use std::os;
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use std::thread::Thread;
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use std::time::Duration;
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enum request {
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get_count,
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bytes(uint),
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stop
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}
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fn server(requests: &Receiver<request>, responses: &Sender<uint>) {
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let mut count: uint = 0;
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let mut done = false;
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while !done {
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match requests.recv() {
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Ok(request::get_count) => { responses.send(count.clone()); }
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Ok(request::bytes(b)) => {
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//println!("server: received {} bytes", b);
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count += b;
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}
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Err(..) => { done = true; }
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_ => { }
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}
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}
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responses.send(count).unwrap();
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//println!("server exiting");
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}
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fn run(args: &[String]) {
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let (to_parent, from_child) = channel();
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let size = args[1].parse::<uint>().unwrap();
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let workers = args[2].parse::<uint>().unwrap();
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let num_bytes = 100;
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let mut result = None;
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let mut to_parent = Some(to_parent);
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let dur = Duration::span(|| {
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let to_parent = to_parent.take().unwrap();
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let mut worker_results = Vec::new();
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let from_parent = if workers == 1 {
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let (to_child, from_parent) = channel();
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worker_results.push(Thread::scoped(move|| {
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for _ in range(0u, size / workers) {
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//println!("worker {}: sending {} bytes", i, num_bytes);
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to_child.send(request::bytes(num_bytes));
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}
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//println!("worker {} exiting", i);
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}));
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from_parent
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} else {
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let (to_child, from_parent) = channel();
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for _ in range(0u, workers) {
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let to_child = to_child.clone();
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worker_results.push(Thread::scoped(move|| {
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for _ in range(0u, size / workers) {
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//println!("worker {}: sending {} bytes", i, num_bytes);
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to_child.send(request::bytes(num_bytes));
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}
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//println!("worker {} exiting", i);
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}));
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}
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from_parent
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};
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Thread::spawn(move|| {
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server(&from_parent, &to_parent);
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});
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for r in worker_results.into_iter() {
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let _ = r.join();
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}
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//println!("sending stop message");
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//to_child.send(stop);
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//move_out(to_child);
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result = Some(from_child.recv().unwrap());
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});
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let result = result.unwrap();
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print!("Count is {}\n", result);
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print!("Test took {} ms\n", dur.num_milliseconds());
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let thruput = ((size / workers * workers) as f64) / (dur.num_milliseconds() as f64);
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print!("Throughput={} per sec\n", thruput / 1000.0);
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assert_eq!(result, num_bytes * size);
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}
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fn main() {
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let args = os::args();
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let args = if os::getenv("RUST_BENCH").is_some() {
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vec!("".to_string(), "1000000".to_string(), "8".to_string())
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} else if args.len() <= 1u {
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vec!("".to_string(), "10000".to_string(), "4".to_string())
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} else {
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args.clone().into_iter().map(|x| x.to_string()).collect()
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};
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println!("{:?}", args);
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run(args.as_slice());
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}
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