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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /vendor/countme/examples | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/countme/examples')
-rw-r--r-- | vendor/countme/examples/bench.rs | 69 | ||||
-rw-r--r-- | vendor/countme/examples/bench_single_thread.rs | 77 | ||||
-rw-r--r-- | vendor/countme/examples/print_at_exit.rs | 11 |
3 files changed, 157 insertions, 0 deletions
diff --git a/vendor/countme/examples/bench.rs b/vendor/countme/examples/bench.rs new file mode 100644 index 000000000..1f9cc967f --- /dev/null +++ b/vendor/countme/examples/bench.rs @@ -0,0 +1,69 @@ +use std::thread; + +use countme::{get, Count}; + +#[derive(Default)] +struct Foo { + _c: Count<Self>, +} + +#[derive(Default)] +struct Bar { + _c: Count<Self>, + _x: i32, +} + +mod deeply { + pub(crate) mod nested { + pub(crate) mod module { + use countme::Count; + + #[derive(Default)] + pub(crate) struct Quux { + _c: Count<Self>, + } + } + } +} + +fn main() { + countme::enable(true); + let t = std::time::Instant::now(); + let n = 5; + let m = 1_000_000; + + let mut threads = Vec::new(); + for _ in 0..n { + threads.push(thread::spawn(move || { + for _ in 0..m { + Foo::default(); + } + })); + threads.push(thread::spawn(move || { + let mut xs = Vec::with_capacity(m); + for _ in 0..m { + xs.push(Bar::default()) + } + })); + threads.push(thread::spawn(move || { + for _ in 0..m { + deeply::nested::module::Quux::default(); + } + })); + } + for t in threads { + t.join().unwrap(); + } + + let foo = get::<Foo>(); + assert_eq!(foo.total, m * n); + assert!(foo.max_live >= 1); + assert_eq!(foo.live, 0); + + let bar = get::<Bar>(); + assert_eq!(bar.total, m * n); + assert!(bar.max_live >= m); + assert_eq!(bar.live, 0); + + println!("{:?}", t.elapsed()); +} diff --git a/vendor/countme/examples/bench_single_thread.rs b/vendor/countme/examples/bench_single_thread.rs new file mode 100644 index 000000000..ac147f861 --- /dev/null +++ b/vendor/countme/examples/bench_single_thread.rs @@ -0,0 +1,77 @@ +use countme::{get, Count}; + +#[derive(Default)] +struct Foo { + _c: Count<Self>, +} + +#[derive(Default)] +struct Bar { + _c: Count<Self>, + _x: i32, +} + +mod deeply { + pub(crate) mod nested { + pub(crate) mod module { + use countme::Count; + + #[derive(Default)] + pub(crate) struct Quux { + _c: Count<Self>, + } + } + } +} + +fn main() { + countme::enable(true); + let t = std::time::Instant::now(); + let n = 6; + let m = 2_000_000; + + for _ in 0..n { + for _ in 0..m { + Foo::default(); + } + + let mut xs = Vec::with_capacity(m); + for _ in 0..m { + xs.push(Bar::default()) + } + + for _ in 0..m { + deeply::nested::module::Quux::default(); + } + + let fs = [ + || drop(Foo::default()), + || drop(Bar::default()), + || drop(deeply::nested::module::Quux::default()), + || { + #[derive(Default)] + struct Local(Count<Self>); + + Local::default(); + }, + ]; + for i in 0..m { + fs[i % 4](); + } + } + + let foo = get::<Foo>(); + assert_eq!(foo.total, m * n + (m * n / 4)); + assert_eq!(foo.max_live, 1); + assert_eq!(foo.live, 0); + + let bar = get::<Bar>(); + assert_eq!(bar.total, m * n + (m * n / 4)); + + // FIXME: why +1? This seems like a bug + // overreporting by 1 is not significant, but anyway + assert_eq!(bar.max_live, m + 1); + assert_eq!(bar.live, 0); + + println!("{:?}", t.elapsed()); +} diff --git a/vendor/countme/examples/print_at_exit.rs b/vendor/countme/examples/print_at_exit.rs new file mode 100644 index 000000000..fd51e2288 --- /dev/null +++ b/vendor/countme/examples/print_at_exit.rs @@ -0,0 +1,11 @@ +#[derive(Default)] +struct Widget { + _t: countme::Count<Self>, +} + +fn main() { + let w1 = Widget::default(); + let _w2 = Widget::default(); + drop(w1); + let _w3 = Widget::default(); +} |