117 lines
3.5 KiB
Rust
117 lines
3.5 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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// This test creates a bunch of tasks that simultaneously send to each
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// other in a ring. The messages should all be basically
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// independent. It's designed to hammer the global kernel lock, so
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// that things will look really good once we get that lock out of the
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// message path.
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// This version uses automatically compiled channel contracts.
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extern mod std;
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use std::time;
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use std::future;
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use core::pipes::recv;
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proto! ring (
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num:send {
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num(uint) -> num
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}
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)
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macro_rules! move_out (
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($x:expr) => { unsafe { let y = *ptr::addr_of(&$x); y } }
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)
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fn thread_ring(i: uint,
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count: uint,
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+num_chan: ring::client::num,
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+num_port: ring::server::num) {
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let mut num_chan = Some(num_chan);
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let mut num_port = Some(num_port);
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// Send/Receive lots of messages.
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for uint::range(0, count) |j| {
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//error!("task %?, iter %?", i, j);
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let mut num_chan2 = None;
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let mut num_port2 = None;
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num_chan2 <-> num_chan;
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num_port2 <-> num_port;
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num_chan = Some(ring::client::num(option::unwrap(num_chan2), i * j));
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let port = option::unwrap(num_port2);
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match recv(port) {
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ring::num(_n, p) => {
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//log(error, _n);
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num_port = Some(move_out!(p));
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}
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}
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};
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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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~[~"", ~"100", ~"10000"]
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} else if args.len() <= 1u {
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~[~"", ~"100", ~"1000"]
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} else {
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copy args
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};
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let num_tasks = uint::from_str(args[1]).get();
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let msg_per_task = uint::from_str(args[2]).get();
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let (num_chan, num_port) = ring::init();
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let mut num_chan = Some(num_chan);
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let start = time::precise_time_s();
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// create the ring
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let mut futures = ~[];
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for uint::range(1u, num_tasks) |i| {
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//error!("spawning %?", i);
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let (new_chan, num_port) = ring::init();
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let num_chan2 = ~mut None;
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*num_chan2 <-> num_chan;
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let num_port = ~mut Some(num_port);
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let new_future = do future::spawn || {
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let mut num_chan = None;
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num_chan <-> *num_chan2;
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let mut num_port1 = None;
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num_port1 <-> *num_port;
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thread_ring(i, msg_per_task,
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option::unwrap(num_chan),
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option::unwrap(num_port1))
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};
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futures.push(new_future);
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num_chan = Some(new_chan);
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};
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// do our iteration
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thread_ring(0, msg_per_task, option::unwrap(num_chan), num_port);
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// synchronize
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for futures.each |f| { f.get() };
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let stop = time::precise_time_s();
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// all done, report stats.
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let num_msgs = num_tasks * msg_per_task;
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let elapsed = (stop - start);
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let rate = (num_msgs as float) / elapsed;
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io::println(fmt!("Sent %? messages in %? seconds",
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num_msgs, elapsed));
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io::println(fmt!(" %? messages / second", rate));
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io::println(fmt!(" %? μs / message", 1000000. / rate));
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}
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