Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

114 lines (94 sloc) 3.166 kB
// This test creates a bunch of tasks that simultaneously send to each
// other in a ring. The messages should all be basically
// independent. It's designed to hammer the global kernel lock, so
// that things will look really good once we get that lock out of the
// message path.
// This version uses automatically compiled channel contracts.
// xfail-pretty
use future::future;
extern mod std;
use std::time;
use pipes::recv;
proto! ring (
num:send {
num(uint) -> num
}
)
fn macros() {
#macro[
[#move_out[x],
unsafe { let y <- *ptr::addr_of(&x); y }]
];
}
fn thread_ring(i: uint,
count: uint,
+num_chan: ring::client::num,
+num_port: ring::server::num) {
let mut num_chan <- Some(num_chan);
let mut num_port <- Some(num_port);
// Send/Receive lots of messages.
for uint::range(0u, count) |j| {
//error!("task %?, iter %?", i, j);
let mut num_chan2 = None;
let mut num_port2 = None;
num_chan2 <-> num_chan;
num_port2 <-> num_port;
num_chan = Some(ring::client::num(option::unwrap(num_chan2), i * j));
let port = option::unwrap(num_port2);
match recv(port) {
ring::num(_n, p) => {
//log(error, _n);
num_port = Some(move_out!(p));
}
}
};
}
fn main() {
let args = os::args();
let args = if os::getenv(~"RUST_BENCH").is_some() {
~[~"", ~"100", ~"10000"]
} else if args.len() <= 1u {
~[~"", ~"100", ~"1000"]
} else {
copy args
};
let num_tasks = uint::from_str(args[1]).get();
let msg_per_task = uint::from_str(args[2]).get();
let (num_chan, num_port) = ring::init();
let mut num_chan = Some(num_chan);
let start = time::precise_time_s();
// create the ring
let mut futures = ~[];
for uint::range(1u, num_tasks) |i| {
//error!("spawning %?", i);
let (new_chan, num_port) = ring::init();
let num_chan2 = ~mut None;
*num_chan2 <-> num_chan;
let num_port = ~mut Some(num_port);
let new_future = do future::spawn
|move num_chan2, move num_port| {
let mut num_chan = None;
num_chan <-> *num_chan2;
let mut num_port1 = None;
num_port1 <-> *num_port;
thread_ring(i, msg_per_task,
option::unwrap(num_chan),
option::unwrap(num_port1))
};
futures.push(new_future);
num_chan = Some(new_chan);
};
// do our iteration
thread_ring(0u, msg_per_task, option::unwrap(num_chan), num_port);
// synchronize
for futures.each |f| { future::get(f) };
let stop = time::precise_time_s();
// all done, report stats.
let num_msgs = num_tasks * msg_per_task;
let elapsed = (stop - start);
let rate = (num_msgs as float) / elapsed;
io::println(fmt!("Sent %? messages in %? seconds",
num_msgs, elapsed));
io::println(fmt!(" %? messages / second", rate));
io::println(fmt!(" %? μs / message", 1000000. / rate));
}
Jump to Line
Something went wrong with that request. Please try again.