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#![feature(test)]
#![deny(warnings)]
extern crate futures;
extern crate tokio;
#[macro_use]
extern crate tokio_io;
pub extern crate test;
mod prelude {
pub use futures::*;
pub use tokio::reactor::Reactor;
pub use tokio::net::{TcpListener, TcpStream};
pub use tokio::executor::current_thread;
pub use tokio_io::io::read_to_end;
pub use test::{self, Bencher};
pub use std::thread;
pub use std::time::Duration;
pub use std::io::{self, Read, Write};
}
mod connect_churn {
use ::prelude::*;
const NUM: usize = 300;
const CONCURRENT: usize = 8;
#[bench]
fn one_thread(b: &mut Bencher) {
let addr = "127.0.0.1:0".parse().unwrap();
b.iter(move || {
let listener = TcpListener::bind(&addr).unwrap();
let addr = listener.local_addr().unwrap();
// Spawn a single future that accepts & drops connections
let serve_incomings = listener.incoming()
.map_err(|e| panic!("server err: {:?}", e))
.for_each(|_| Ok(()));
let connects = stream::iter_result((0..NUM).map(|_| {
Ok(TcpStream::connect(&addr)
.and_then(|sock| {
sock.set_linger(Some(Duration::from_secs(0))).unwrap();
read_to_end(sock, vec![])
}))
}));
let connects_concurrent = connects.buffer_unordered(CONCURRENT)
.map_err(|e| panic!("client err: {:?}", e))
.for_each(|_| Ok(()));
serve_incomings.select(connects_concurrent)
.map(|_| ()).map_err(|_| ())
.wait().unwrap();
});
}
fn n_workers(n: usize, b: &mut Bencher) {
let (shutdown_tx, shutdown_rx) = sync::oneshot::channel();
let (addr_tx, addr_rx) = sync::oneshot::channel();
// Spawn reactor thread
let server_thread = thread::spawn(move || {
// Bind the TCP listener
let listener = TcpListener::bind(
&"127.0.0.1:0".parse().unwrap()).unwrap();
// Get the address being listened on.
let addr = listener.local_addr().unwrap();
// Send the remote & address back to the main thread
addr_tx.send(addr).unwrap();
// Spawn a single future that accepts & drops connections
let serve_incomings = listener.incoming()
.map_err(|e| panic!("server err: {:?}", e))
.for_each(|_| Ok(()));
// Run server
serve_incomings.select(shutdown_rx)
.map(|_| ()).map_err(|_| ())
.wait().unwrap();
});
// Get the bind addr of the server
let addr = addr_rx.wait().unwrap();
b.iter(move || {
use std::sync::{Barrier, Arc};
// Create a barrier to coordinate threads
let barrier = Arc::new(Barrier::new(n + 1));
// Spawn worker threads
let threads: Vec<_> = (0..n).map(|_| {
let barrier = barrier.clone();
let addr = addr.clone();
thread::spawn(move || {
let connects = stream::iter_result((0..(NUM / n)).map(|_| {
Ok(TcpStream::connect(&addr)
.map_err(|e| panic!("connect err: {:?}", e))
.and_then(|sock| {
sock.set_linger(Some(Duration::from_secs(0))).unwrap();
read_to_end(sock, vec![])
}))
}));
barrier.wait();
connects.buffer_unordered(CONCURRENT)
.map_err(|e| panic!("client err: {:?}", e))
.for_each(|_| Ok(())).wait().unwrap();
})
}).collect();
barrier.wait();
for th in threads {
th.join().unwrap();
}
});
// Shutdown the server
shutdown_tx.send(()).unwrap();
server_thread.join().unwrap();
}
#[bench]
fn two_threads(b: &mut Bencher) {
n_workers(1, b);
}
#[bench]
fn multi_threads(b: &mut Bencher) {
n_workers(4, b);
}
}
mod transfer {
use ::prelude::*;
use std::{cmp, mem};
const MB: usize = 3 * 1024 * 1024;
struct Drain {
sock: TcpStream,
chunk: usize,
}
impl Future for Drain {
type Item = ();
type Error = io::Error;
fn poll(&mut self) -> Poll<(), io::Error> {
let mut buf: [u8; 1024] = unsafe { mem::uninitialized() };
loop {
match try_nb!(self.sock.read(&mut buf[..self.chunk])) {
0 => return Ok(Async::Ready(())),
_ => {}
}
}
}
}
struct Transfer {
sock: TcpStream,
rem: usize,
chunk: usize,
}
impl Future for Transfer {
type Item = ();
type Error = io::Error;
fn poll(&mut self) -> Poll<(), io::Error> {
while self.rem > 0 {
let len = cmp::min(self.rem, self.chunk);
let buf = &DATA[..len];
let n = try_nb!(self.sock.write(&buf));
self.rem -= n;
}
Ok(Async::Ready(()))
}
}
static DATA: [u8; 1024] = [0; 1024];
fn one_thread(b: &mut Bencher, read_size: usize, write_size: usize) {
let addr = "127.0.0.1:0".parse().unwrap();
b.iter(move || {
let listener = TcpListener::bind(&addr).unwrap();
let addr = listener.local_addr().unwrap();
// Spawn a single future that accepts 1 connection, Drain it and drops
let server = listener.incoming()
.into_future() // take the first connection
.map_err(|(e, _other_incomings)| e)
.map(|(connection, _other_incomings)| connection.unwrap())
.and_then(|sock| {
sock.set_linger(Some(Duration::from_secs(0))).unwrap();
let drain = Drain {
sock: sock,
chunk: read_size,
};
drain.map(|_| ()).map_err(|e| panic!("server error: {:?}", e))
})
.map_err(|e| panic!("server err: {:?}", e));
let client = TcpStream::connect(&addr)
.and_then(move |sock| {
Transfer {
sock: sock,
rem: MB,
chunk: write_size,
}
})
.map_err(|e| panic!("client err: {:?}", e));
server.join(client).wait().unwrap();
});
}
mod small_chunks {
use ::prelude::*;
#[bench]
fn one_thread(b: &mut Bencher) {
super::one_thread(b, 32, 32);
}
}
mod big_chunks {
use ::prelude::*;
#[bench]
fn one_thread(b: &mut Bencher) {
super::one_thread(b, 1_024, 1_024);
}
}
}
|
