measure sleep delay in loop
This commit is contained in:
Simon Wörner
61
V2/sleep/Cargo.lock
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61
V2/sleep/Cargo.lock
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[root]
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name = "sleep"
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version = "0.1.0"
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dependencies = [
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"shuteye 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"time 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "kernel32-sys"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "libc"
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version = "0.2.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "redox_syscall"
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version = "0.1.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "shuteye"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "time"
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version = "0.1.36"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "winapi"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi-build"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
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"checksum libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "88ee81885f9f04bff991e306fea7c1c60a5f0f9e409e99f6b40e3311a3363135"
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"checksum redox_syscall 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "29dbdfd4b9df8ab31dec47c6087b7b13cbf4a776f335e4de8efba8288dda075b"
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"checksum shuteye 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2fae018891baadd06ff0281ff137ccd1641044d9bb9498b1138ffecf28f30172"
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"checksum time 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)" = "211b63c112206356ef1ff9b19355f43740fc3f85960c598a93d3a3d3ba7beade"
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"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
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"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
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9
V2/sleep/Cargo.toml
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9
V2/sleep/Cargo.toml
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@@ -0,0 +1,9 @@
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[package]
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name = "sleep"
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version = "0.1.0"
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authors = ["Simon Wörner <git@simon-woerner.de>"]
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[dependencies]
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# libc = ">=0.2.21"
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shuteye = ">=0.2.0"
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time = ">=0.1.36"
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60
V2/sleep/src/main.rs
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60
V2/sleep/src/main.rs
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extern crate shuteye;
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extern crate time;
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use std::time::Duration;
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use shuteye::sleep;
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use time::precise_time_ns;
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fn measure_duration(sleep_duration: Duration) -> Duration {
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let start = precise_time_ns();
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sleep(sleep_duration);
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let end = precise_time_ns();
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let duration = end - start;
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Duration::new(duration / 1_000_000_000, (duration % 1_000_000_000) as u32)
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}
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fn measure_delay(sleep_duration: Duration) -> (Duration, Duration) {
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let duration = measure_duration(sleep_duration);
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(duration, duration - sleep_duration)
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}
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fn measure_delay_loop(sleep_duration: Duration, count: u64) -> Vec<(Duration, Duration)> {
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println!("Starting measurment with period {}s {}ns for {} loops",
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sleep_duration.as_secs(),
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sleep_duration.subsec_nanos(),
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count);
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let mut data: Vec<(Duration, Duration)> = Vec::with_capacity(count as usize);
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for _ in 0..count {
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let (duration, delay) = measure_delay(sleep_duration);
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data.push((duration, delay));
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println!("value: {} s {} ns\tdelay: {} s {} ns\trelativ delay = {:.2}%\traw_data: {:?}",
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duration.as_secs(),
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duration.subsec_nanos(),
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delay.as_secs(),
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delay.subsec_nanos(),
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(delay.subsec_nanos() * 100) as f64 / duration.subsec_nanos() as f64,
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delay);
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}
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data
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}
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fn main() {
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println!("Hello, world!");
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let data = measure_delay_loop(Duration::new(0, 10_000_000), 100);
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println!("{:?}", data);
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/*let sleep_time = 5000;
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println!("sleep_time = {}", sleep_time);
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let start = precise_time_ns();
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sleep(Duration::from_millis(5000));
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let end = precise_time_ns();
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let diff = end-start;
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println!("start = {}ms\nend = {}\ndiff = {}", start, end, diff);
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println!("diff - sleep_time = {}", diff - sleep_time * 1000 * 1000);*/
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}
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