1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // A port of the simplistic benchmark from
13 // http://github.com/PaulKeeble/ScalaVErlangAgents
15 // I *think* it's the same, more or less.
17 #![feature(duration, duration_span)]
19 use std::sync::mpsc::{channel, Sender, Receiver};
22 use std::time::Duration;
30 fn server(requests: &Receiver<request>, responses: &Sender<usize>) {
31 let mut count: usize = 0;
34 match requests.recv() {
35 Ok(request::get_count) => { responses.send(count.clone()); }
36 Ok(request::bytes(b)) => {
37 //println!("server: received {} bytes", b);
40 Err(..) => { done = true; }
44 responses.send(count).unwrap();
45 //println!("server exiting");
48 fn run(args: &[String]) {
49 let (to_parent, from_child) = channel();
51 let size = args[1].parse::<usize>().unwrap();
52 let workers = args[2].parse::<usize>().unwrap();
54 let mut result = None;
55 let mut to_parent = Some(to_parent);
56 let dur = Duration::span(|| {
57 let to_parent = to_parent.take().unwrap();
58 let mut worker_results = Vec::new();
59 let from_parent = if workers == 1 {
60 let (to_child, from_parent) = channel();
61 worker_results.push(thread::spawn(move|| {
62 for _ in 0..size / workers {
63 //println!("worker {}: sending {} bytes", i, num_bytes);
64 to_child.send(request::bytes(num_bytes));
66 //println!("worker {} exiting", i);
70 let (to_child, from_parent) = channel();
72 let to_child = to_child.clone();
73 worker_results.push(thread::spawn(move|| {
74 for _ in 0..size / workers {
75 //println!("worker {}: sending {} bytes", i, num_bytes);
76 to_child.send(request::bytes(num_bytes));
78 //println!("worker {} exiting", i);
83 thread::spawn(move|| {
84 server(&from_parent, &to_parent);
87 for r in worker_results {
91 //println!("sending stop message");
92 //to_child.send(stop);
94 result = Some(from_child.recv().unwrap());
96 let result = result.unwrap();
97 print!("Count is {}\n", result);
98 print!("Test took {:?}\n", dur);
99 let thruput = ((size / workers * workers) as f64) / (dur.as_secs() as f64);
100 print!("Throughput={} per sec\n", thruput);
101 assert_eq!(result, num_bytes * size);
105 let args = env::args();
106 let args = if env::var_os("RUST_BENCH").is_some() {
107 vec!("".to_string(), "1000000".to_string(), "8".to_string())
108 } else if args.len() <= 1 {
109 vec!("".to_string(), "10000".to_string(), "4".to_string())
111 args.map(|x| x.to_string()).collect()
114 println!("{:?}", args);