ADTast-experimental
Last change
on this file since 119e6c8 was
26fd986,
checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
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update benchmarks for concurrency paper
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-
Property mode set to
100644
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File size:
982 bytes
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1 | use std::env; |
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2 | use std::process; |
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3 | use std::thread; |
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4 | use std::sync::{Arc, Mutex, Condvar}; |
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5 | use std::time::Instant; |
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6 | |
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7 | fn main() { |
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8 | let mut times : u32 = 500000; |
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9 | let args: Vec<String> = env::args().collect(); |
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10 | if args.len() > 2 { process::exit( 1 ); } |
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11 | if args.len() == 2 { times = args[1].parse().unwrap(); } |
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12 | |
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13 | let m = Arc::new(Mutex::new(0)); |
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14 | let c = Arc::new(Condvar::new()); |
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15 | |
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16 | let m2 = Arc::clone(&m); |
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17 | let c2 = Arc::clone(&c); |
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18 | |
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19 | let th = thread::spawn( move || { |
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20 | while *m2.lock().unwrap() == 0 { // waiter must start first |
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21 | thread::yield_now(); |
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22 | } |
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23 | let start = Instant::now(); |
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24 | while *m2.lock().unwrap() == 1 { |
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25 | c2.notify_one(); |
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26 | } |
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27 | let duration = start.elapsed() / times; |
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28 | println!( "{:?}", duration.as_nanos() ); |
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29 | }); |
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30 | { |
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31 | let mut sc = m.lock().unwrap(); |
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32 | *sc = 1; |
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33 | for _ in 1..times { |
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34 | sc = c.wait(sc).unwrap(); |
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35 | } |
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36 | *sc = 0; |
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37 | } |
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38 | th.join().unwrap(); |
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39 | } |
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40 | |
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41 | // Local Variables: // |
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42 | // tab-width: 4 // |
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43 | // compile-command: "rustc -C opt-level=3 rust.rs" // |
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44 | // End: // |
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45 | |
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